diff --git a/natural-images/images/1.png b/natural-images/images/1.png
new file mode 100644
index 0000000000000000000000000000000000000000..0b5e7ffaa1dfa8e08d0e10526b4c4b2ec610d212
--- /dev/null
+++ b/natural-images/images/1.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fa5da732ae27480faf58b52715711ebbe71ef5ca54ae0eb7d4af2bb93639266c
+size 217152
diff --git a/natural-images/images/10.png b/natural-images/images/10.png
new file mode 100644
index 0000000000000000000000000000000000000000..56ccc8b202d27a3f367570b4200804d48c535c4e
--- /dev/null
+++ b/natural-images/images/10.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7c79b161608e54ae4b172e6f4b90655d0f5403a8d2b128f8bdaa9f57dceefdcd
+size 192968
diff --git a/natural-images/images/11.png b/natural-images/images/11.png
new file mode 100644
index 0000000000000000000000000000000000000000..0375d4c39ec1d86b7b99c9e122d9556dd3bf8ee6
--- /dev/null
+++ b/natural-images/images/11.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5c23cde8ea8c2f02c6332a1c0fb7fe0460e3a37fd88fe9bdd6675f22f31cec64
+size 152720
diff --git a/natural-images/images/12.png b/natural-images/images/12.png
new file mode 100644
index 0000000000000000000000000000000000000000..a2eb64fd671c8fbc4e90d6479afde82c3b8dcca4
--- /dev/null
+++ b/natural-images/images/12.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0446b3da54b3f7f3fce1ff68c83a61b39ad46b37086ea7e22ca4cd47b63760bf
+size 187107
diff --git a/natural-images/images/13.png b/natural-images/images/13.png
new file mode 100644
index 0000000000000000000000000000000000000000..0a1eed431e7312ed295b30349967f958335fe68b
--- /dev/null
+++ b/natural-images/images/13.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d5bb994b7505f4db64f866067dfb4b098be2f2c48d4735f852d86d4915e6f46f
+size 158577
diff --git a/natural-images/images/14.png b/natural-images/images/14.png
new file mode 100644
index 0000000000000000000000000000000000000000..ad033adcd555332a1a07649771254067608c2acc
--- /dev/null
+++ b/natural-images/images/14.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:31680e006b90786092e88210e881721df246269126f7132b23c9e9832cdf37de
+size 187487
diff --git a/natural-images/images/15.png b/natural-images/images/15.png
new file mode 100644
index 0000000000000000000000000000000000000000..03b00f507c7277200fdff8b9afb2d5ffcb7752eb
--- /dev/null
+++ b/natural-images/images/15.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a76bf264c2dba7d360e04449ad975885960951f799bd61a3e1bc135f06fe9cfa
+size 226749
diff --git a/natural-images/images/16.png b/natural-images/images/16.png
new file mode 100644
index 0000000000000000000000000000000000000000..18400a7810fd838fafa824bd2e1244e11d3424ac
--- /dev/null
+++ b/natural-images/images/16.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:48bf35cf77c214b5c361fb22acbd67bf70ae5bcc40d48af1ac1b63143428c082
+size 213493
diff --git a/natural-images/images/17.png b/natural-images/images/17.png
new file mode 100644
index 0000000000000000000000000000000000000000..1667f34c531002e519281b75f61ebac4c78314b0
--- /dev/null
+++ b/natural-images/images/17.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f903e504cd233d356e655d043d8b7297894cf1d8c4a61755114748646b57db34
+size 170510
diff --git a/natural-images/images/18.png b/natural-images/images/18.png
new file mode 100644
index 0000000000000000000000000000000000000000..0b5e7ffaa1dfa8e08d0e10526b4c4b2ec610d212
--- /dev/null
+++ b/natural-images/images/18.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fa5da732ae27480faf58b52715711ebbe71ef5ca54ae0eb7d4af2bb93639266c
+size 217152
diff --git a/natural-images/images/19.png b/natural-images/images/19.png
new file mode 100644
index 0000000000000000000000000000000000000000..b283c20ba769e0062b2b19ebdc68b22136388ed0
--- /dev/null
+++ b/natural-images/images/19.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8d7ad3652887b405a6e66443365da509fce2508cfad82bb7b2142497b2885276
+size 120424
diff --git a/natural-images/images/2.png b/natural-images/images/2.png
new file mode 100644
index 0000000000000000000000000000000000000000..5824988711b587ea7d7db767a662731ee3ef4b3d
--- /dev/null
+++ b/natural-images/images/2.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5e39f30a9c2e7b2a314f2d68b67a801f96b124bdc51e89708bd95cc6b852bd8e
+size 184673
diff --git a/natural-images/images/20.png b/natural-images/images/20.png
new file mode 100644
index 0000000000000000000000000000000000000000..ad8c57cc0387244565c34f7e64cdc30bd82bf8ed
--- /dev/null
+++ b/natural-images/images/20.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bd236b3d3bc780914278935da0d462313326c2ff5929ac0e9cb3c20a6dceafaa
+size 139323
diff --git a/natural-images/images/21.png b/natural-images/images/21.png
new file mode 100644
index 0000000000000000000000000000000000000000..833dff34b5d29f2cbc7bc0d6430dd1e7fa7a2056
--- /dev/null
+++ b/natural-images/images/21.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:59c61aad5e7f55bd5ed5e3c430d340aba2d92a017277f603b7272d1d919ddd8d
+size 227818
diff --git a/natural-images/images/22.png b/natural-images/images/22.png
new file mode 100644
index 0000000000000000000000000000000000000000..4744fe0d043490be4f4300bc387427789640e574
--- /dev/null
+++ b/natural-images/images/22.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bb877700afc29e31c1f86b589c3065da9ec01e384583e9ccd024153ac9abd5bd
+size 78430
diff --git a/natural-images/images/23.png b/natural-images/images/23.png
new file mode 100644
index 0000000000000000000000000000000000000000..7316d89f89d0189e37700f452480ce32287faf07
--- /dev/null
+++ b/natural-images/images/23.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8b9dd64f49d8a0d37f839aa0c83ba6bef5da58d93c31bc99f41d52e5800b5053
+size 274856
diff --git a/natural-images/images/24.png b/natural-images/images/24.png
new file mode 100644
index 0000000000000000000000000000000000000000..52098d0874d66a521189e600504e272facded4b2
--- /dev/null
+++ b/natural-images/images/24.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fa3b0c43328e1c8e23b99f2b0589ff20d7cefd0ac8c491b576d93bd845856885
+size 222213
diff --git a/natural-images/images/25.png b/natural-images/images/25.png
new file mode 100644
index 0000000000000000000000000000000000000000..0bf3853025601bb0d6d8a6ee709c690ad2b34a5b
--- /dev/null
+++ b/natural-images/images/25.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:31cb330f115f677fe2be7bd2d0d072efba79664ec0029462a8263b10824521d6
+size 142325
diff --git a/natural-images/images/26.png b/natural-images/images/26.png
new file mode 100644
index 0000000000000000000000000000000000000000..f3c53b844a466f24d06575f61e88a6a327f4ec6d
--- /dev/null
+++ b/natural-images/images/26.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f43c9a993097a746b2f62d0e8e785beebd9fcbf0087f22eb65c77063fc443b23
+size 123255
diff --git a/natural-images/images/27.png b/natural-images/images/27.png
new file mode 100644
index 0000000000000000000000000000000000000000..7739e685512926a24564b6767ad1bcc3f5637204
--- /dev/null
+++ b/natural-images/images/27.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cc4b263e398363bf128086f5f6cd3710c738ded2e74fee9d090ad8a48f670c27
+size 165167
diff --git a/natural-images/images/28.png b/natural-images/images/28.png
new file mode 100644
index 0000000000000000000000000000000000000000..0375d4c39ec1d86b7b99c9e122d9556dd3bf8ee6
--- /dev/null
+++ b/natural-images/images/28.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5c23cde8ea8c2f02c6332a1c0fb7fe0460e3a37fd88fe9bdd6675f22f31cec64
+size 152720
diff --git a/natural-images/images/29.png b/natural-images/images/29.png
new file mode 100644
index 0000000000000000000000000000000000000000..95762a2c9dff5b0fc64f388dfb13eec564979aec
--- /dev/null
+++ b/natural-images/images/29.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1ae23d686bba669c2304da2a18b190387fedae90cbc79d37fd28d215a26fc4d8
+size 179662
diff --git a/natural-images/images/3.png b/natural-images/images/3.png
new file mode 100644
index 0000000000000000000000000000000000000000..b24159ba4e0adf205d55837c1235b4614d751940
--- /dev/null
+++ b/natural-images/images/3.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8921e6a643ec93e65b3d787afb101704ac4968eabb98321063ca59dceba819c8
+size 148561
diff --git a/natural-images/images/30.png b/natural-images/images/30.png
new file mode 100644
index 0000000000000000000000000000000000000000..a2848ee53bac93856a241fb9fea61f6a8c961cf7
--- /dev/null
+++ b/natural-images/images/30.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9a53ded8b0d6803720c2a9e566f92b06b8608837c72c93e2fd261226b326181d
+size 301633
diff --git a/natural-images/images/31.png b/natural-images/images/31.png
new file mode 100644
index 0000000000000000000000000000000000000000..26e5b9ba8d3dbbefb994c3b5a82d6177a3eb3680
--- /dev/null
+++ b/natural-images/images/31.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ca7e2d14bd17de10ad6c8db4b1fe6bc8d92a100feaad5cc8307027bda7ab6a8e
+size 136623
diff --git a/natural-images/images/32.png b/natural-images/images/32.png
new file mode 100644
index 0000000000000000000000000000000000000000..3ce3829f3699e8ab5440f5f1ea35075d8c8aaa80
--- /dev/null
+++ b/natural-images/images/32.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:59d629a3dcd92e47e0ed04fe2452d360f8201b52e00950d0b19fa1b892e90288
+size 163551
diff --git a/natural-images/images/33.png b/natural-images/images/33.png
new file mode 100644
index 0000000000000000000000000000000000000000..f3c53b844a466f24d06575f61e88a6a327f4ec6d
--- /dev/null
+++ b/natural-images/images/33.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f43c9a993097a746b2f62d0e8e785beebd9fcbf0087f22eb65c77063fc443b23
+size 123255
diff --git a/natural-images/images/34.png b/natural-images/images/34.png
new file mode 100644
index 0000000000000000000000000000000000000000..ad8c57cc0387244565c34f7e64cdc30bd82bf8ed
--- /dev/null
+++ b/natural-images/images/34.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bd236b3d3bc780914278935da0d462313326c2ff5929ac0e9cb3c20a6dceafaa
+size 139323
diff --git a/natural-images/images/35.png b/natural-images/images/35.png
new file mode 100644
index 0000000000000000000000000000000000000000..2bf0976d6c8b299588127101e34ccd4d5943488f
--- /dev/null
+++ b/natural-images/images/35.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:54176ae22e903f27b4b3b244843777849946cf9d85e49ef0984b9c053ae77475
+size 261728
diff --git a/natural-images/images/36.png b/natural-images/images/36.png
new file mode 100644
index 0000000000000000000000000000000000000000..efe5690906a43805e71bb467d3867331b446e627
--- /dev/null
+++ b/natural-images/images/36.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6779869cfd51b90e2d88c33b27f1c4b45d3e2fd0d77e456eb659a2660d1e24b0
+size 183921
diff --git a/natural-images/images/37.png b/natural-images/images/37.png
new file mode 100644
index 0000000000000000000000000000000000000000..186a883d38f76a5dbf31e4bbd9a72e9d9b52e47b
--- /dev/null
+++ b/natural-images/images/37.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:55a4e633cb0c2fd2c27828222fca82031e5d51f05036c137a62ac0b792311575
+size 255986
diff --git a/natural-images/images/38.png b/natural-images/images/38.png
new file mode 100644
index 0000000000000000000000000000000000000000..ba63fa0b7a4e300baa758bd15ed1963f9c8a97a6
--- /dev/null
+++ b/natural-images/images/38.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b84ee30b9a35e0db319dbf6d9d4caccd3ccb96e7953332a42acc2f5b7d8b9988
+size 194642
diff --git a/natural-images/images/39.png b/natural-images/images/39.png
new file mode 100644
index 0000000000000000000000000000000000000000..9dc4081a90620ef245a036ca27e94f5497f61bb0
--- /dev/null
+++ b/natural-images/images/39.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ea22ddb649df76027fc72a51a9e10e493bf26d9348440aec49b2acbce69a6b6e
+size 342090
diff --git a/natural-images/images/4.png b/natural-images/images/4.png
new file mode 100644
index 0000000000000000000000000000000000000000..433e7d0ff597b9aaa9b232858555d310d54482ae
--- /dev/null
+++ b/natural-images/images/4.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb407e265336d33eeb7e590441eca41216d82f377af4572d1e6891993cf1ba36
+size 121248
diff --git a/natural-images/images/40.png b/natural-images/images/40.png
new file mode 100644
index 0000000000000000000000000000000000000000..e99e85aab549c42406d3e8b2e0a4cbd1bc5f71ba
--- /dev/null
+++ b/natural-images/images/40.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:defa2976a38a95a71df9ca5c297ae2fcebe8326d0f67e40b2212a65fe710290f
+size 111234
diff --git a/natural-images/images/41.png b/natural-images/images/41.png
new file mode 100644
index 0000000000000000000000000000000000000000..d0acd0a25e4acec622b8eac910153d8129159a0d
--- /dev/null
+++ b/natural-images/images/41.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9a9255e983ac5662b1ceae74b0b6615c2f255d358f61ea2c4d6e33f4313be9da
+size 269007
diff --git a/natural-images/images/42.png b/natural-images/images/42.png
new file mode 100644
index 0000000000000000000000000000000000000000..d078adab68e9ad011b61cae454ae0e722a5816f3
--- /dev/null
+++ b/natural-images/images/42.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:665ea093a9d5261fb8559a1b6c167b6d14b2f3b61352bceda337dfc06b84b69d
+size 177034
diff --git a/natural-images/images/43.png b/natural-images/images/43.png
new file mode 100644
index 0000000000000000000000000000000000000000..e6e9047b0ab18d6e8b6cd6e9cf9aa06832369165
--- /dev/null
+++ b/natural-images/images/43.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8ef713b6f94b86157dd19c7d76ec9f0073ef5d3cf39a2b99a77e00575c5dcfc6
+size 277419
diff --git a/natural-images/images/44.png b/natural-images/images/44.png
new file mode 100644
index 0000000000000000000000000000000000000000..e861538f1705112aceccc0c14cc9dff9eca2862c
--- /dev/null
+++ b/natural-images/images/44.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5029f3e36734b7e3323beae609ca22975ccecd364af102371db65777f718887d
+size 181910
diff --git a/natural-images/images/45.png b/natural-images/images/45.png
new file mode 100644
index 0000000000000000000000000000000000000000..80e049fef0fa98a877388f0489ec7aa5ed22eaab
--- /dev/null
+++ b/natural-images/images/45.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c7628d967298659ca03c148b5652f96073228eeea7deb58850c3255bb10f6da5
+size 186227
diff --git a/natural-images/images/46.png b/natural-images/images/46.png
new file mode 100644
index 0000000000000000000000000000000000000000..d62fea5b55adfeacee05028cf58b4c9edfbf6def
--- /dev/null
+++ b/natural-images/images/46.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:615d7694b4b81e2dab08294ff0ba40347a27dd0845065d644ee68b39ebc02e0f
+size 198013
diff --git a/natural-images/images/47.png b/natural-images/images/47.png
new file mode 100644
index 0000000000000000000000000000000000000000..f8fb6778074bf996d1eb57c7680bb4ccc7643454
--- /dev/null
+++ b/natural-images/images/47.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2006c0188f079e40773531161280d0a815343ab28894ca6fa53e13c199bcd39a
+size 116787
diff --git a/natural-images/images/48.png b/natural-images/images/48.png
new file mode 100644
index 0000000000000000000000000000000000000000..796836e239fd6d2e7350071c233676a3e5b0305f
--- /dev/null
+++ b/natural-images/images/48.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e965204037e1a0a852e46ddefbe53a039d78605d10cb682f4847d5ae7546777c
+size 160413
diff --git a/natural-images/images/49.png b/natural-images/images/49.png
new file mode 100644
index 0000000000000000000000000000000000000000..30857836a70fe4cb8bdbeb553c355cb374bff958
--- /dev/null
+++ b/natural-images/images/49.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:818485fd453b1c2e7acad3fde0f366796df65f25639e66e7a61148406796c40a
+size 222370
diff --git a/natural-images/images/5.png b/natural-images/images/5.png
new file mode 100644
index 0000000000000000000000000000000000000000..efa2fc2c8a383fd0819aa40b9561dd241fc4d106
--- /dev/null
+++ b/natural-images/images/5.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1ded0f586c4a8a3c5a5fb02d0c762fac920b61db4f5461c19f6ddbfb1841a518
+size 164646
diff --git a/natural-images/images/50.png b/natural-images/images/50.png
new file mode 100644
index 0000000000000000000000000000000000000000..f3c53b844a466f24d06575f61e88a6a327f4ec6d
--- /dev/null
+++ b/natural-images/images/50.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f43c9a993097a746b2f62d0e8e785beebd9fcbf0087f22eb65c77063fc443b23
+size 123255
diff --git a/natural-images/images/51.png b/natural-images/images/51.png
new file mode 100644
index 0000000000000000000000000000000000000000..433e7d0ff597b9aaa9b232858555d310d54482ae
--- /dev/null
+++ b/natural-images/images/51.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb407e265336d33eeb7e590441eca41216d82f377af4572d1e6891993cf1ba36
+size 121248
diff --git a/natural-images/images/52.png b/natural-images/images/52.png
new file mode 100644
index 0000000000000000000000000000000000000000..a4bce4f44f4abdc4ddc3ee87a3a1169a21f6803b
--- /dev/null
+++ b/natural-images/images/52.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:647a864806c05bd3d73ef5c41258f945de18ea0c4bd961bf2b51f83f8e1a477a
+size 185150
diff --git a/natural-images/images/53.png b/natural-images/images/53.png
new file mode 100644
index 0000000000000000000000000000000000000000..b210ed2f53b15343f34662b59399e7c54ed6a3d9
--- /dev/null
+++ b/natural-images/images/53.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d94083e8a2f707a9d579c75fb1ac88d2c608cf30a6a38b9a5236f6c16d74bfd6
+size 231405
diff --git a/natural-images/images/54.png b/natural-images/images/54.png
new file mode 100644
index 0000000000000000000000000000000000000000..f6780dd9ecbda2506ee681563d81c3dccbc7d02c
--- /dev/null
+++ b/natural-images/images/54.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f138494c36d27117038759e4d4f65c8d21b978af74fa53020e9642321f41e336
+size 104300
diff --git a/natural-images/images/55.png b/natural-images/images/55.png
new file mode 100644
index 0000000000000000000000000000000000000000..be1aec931c48e521629f6ba6a01cdad39c5340e1
--- /dev/null
+++ b/natural-images/images/55.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9b7f6d0f4e06b120434fa8a59f4d57a8960b5fa1f232d2ab69acb6514cff619c
+size 145566
diff --git a/natural-images/images/56.png b/natural-images/images/56.png
new file mode 100644
index 0000000000000000000000000000000000000000..34d579705c07603fdca5f95219f24e50e35efd6f
--- /dev/null
+++ b/natural-images/images/56.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:80a13638d1a6f1bbbe5e16f649f535c497972d2c615776b84f083299b6179837
+size 221987
diff --git a/natural-images/images/57.png b/natural-images/images/57.png
new file mode 100644
index 0000000000000000000000000000000000000000..14ebdab862eb0031d2df1bf827d126162f28c3f1
--- /dev/null
+++ b/natural-images/images/57.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5550331cca4cd554074087121c763963901f5b91680f1bcdc89d067221e8673a
+size 234297
diff --git a/natural-images/images/58.png b/natural-images/images/58.png
new file mode 100644
index 0000000000000000000000000000000000000000..be1aec931c48e521629f6ba6a01cdad39c5340e1
--- /dev/null
+++ b/natural-images/images/58.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9b7f6d0f4e06b120434fa8a59f4d57a8960b5fa1f232d2ab69acb6514cff619c
+size 145566
diff --git a/natural-images/images/59.png b/natural-images/images/59.png
new file mode 100644
index 0000000000000000000000000000000000000000..0b5e7ffaa1dfa8e08d0e10526b4c4b2ec610d212
--- /dev/null
+++ b/natural-images/images/59.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fa5da732ae27480faf58b52715711ebbe71ef5ca54ae0eb7d4af2bb93639266c
+size 217152
diff --git a/natural-images/images/6.png b/natural-images/images/6.png
new file mode 100644
index 0000000000000000000000000000000000000000..26e5b9ba8d3dbbefb994c3b5a82d6177a3eb3680
--- /dev/null
+++ b/natural-images/images/6.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ca7e2d14bd17de10ad6c8db4b1fe6bc8d92a100feaad5cc8307027bda7ab6a8e
+size 136623
diff --git a/natural-images/images/60.png b/natural-images/images/60.png
new file mode 100644
index 0000000000000000000000000000000000000000..1448c866cbf0f96a58638e6410b37648d246e007
--- /dev/null
+++ b/natural-images/images/60.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b4b4857fee67f5700a0bb18e3685c3a5aad17a302fe3df135309bc47a4a33c64
+size 220900
diff --git a/natural-images/images/7.png b/natural-images/images/7.png
new file mode 100644
index 0000000000000000000000000000000000000000..f8fb6778074bf996d1eb57c7680bb4ccc7643454
--- /dev/null
+++ b/natural-images/images/7.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2006c0188f079e40773531161280d0a815343ab28894ca6fa53e13c199bcd39a
+size 116787
diff --git a/natural-images/images/8.png b/natural-images/images/8.png
new file mode 100644
index 0000000000000000000000000000000000000000..5824988711b587ea7d7db767a662731ee3ef4b3d
--- /dev/null
+++ b/natural-images/images/8.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5e39f30a9c2e7b2a314f2d68b67a801f96b124bdc51e89708bd95cc6b852bd8e
+size 184673
diff --git a/natural-images/images/9.png b/natural-images/images/9.png
new file mode 100644
index 0000000000000000000000000000000000000000..9e0fbfa4feccbc690c5f0d12342c4a5754e2f305
--- /dev/null
+++ b/natural-images/images/9.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3246a581bf86dc22d5f55ef5dfe87d622141d37619e567027d490de85e169bdf
+size 86434
diff --git a/natural-images/masks/1.png b/natural-images/masks/1.png
new file mode 100644
index 0000000000000000000000000000000000000000..909e4836766bb3f4c4cb81b447d84cad53d8d6ab
--- /dev/null
+++ b/natural-images/masks/1.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:350e4e4d498101670885d7a72632acef3611cbcc142e4535946ea3dd7b515a8a
+size 7628
diff --git a/natural-images/masks/10.png b/natural-images/masks/10.png
new file mode 100644
index 0000000000000000000000000000000000000000..a80f1a680961f01f36d1f98eb22041abc01ff094
--- /dev/null
+++ b/natural-images/masks/10.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fdc57625a920bc907217539246339d61b51d7c7c87852e9e90140a43c3e27f67
+size 4386
diff --git a/natural-images/masks/11.png b/natural-images/masks/11.png
new file mode 100644
index 0000000000000000000000000000000000000000..e3252a0159de43c82a694d577b5f3557ad54e55e
--- /dev/null
+++ b/natural-images/masks/11.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:085c11ec9770d6e952a5bb33a4251fcc801fc74bf6f16c9d898b623bf129e441
+size 1875
diff --git a/natural-images/masks/12.png b/natural-images/masks/12.png
new file mode 100644
index 0000000000000000000000000000000000000000..b6f95292b92996c77dc76f506382f5e10086a317
--- /dev/null
+++ b/natural-images/masks/12.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e4d5371948711cbcf9d359fc22f42dbd31a7842922b1d2d0c2badf2d80573137
+size 4014
diff --git a/natural-images/masks/13.png b/natural-images/masks/13.png
new file mode 100644
index 0000000000000000000000000000000000000000..79229e2adf7a7c8f8a5b7486a60715e6c6a16639
--- /dev/null
+++ b/natural-images/masks/13.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:098ae861ea9e344d54bb8b6515b92a4c8a27f864fbaf054e00af8d638a9db22b
+size 2567
diff --git a/natural-images/masks/14.png b/natural-images/masks/14.png
new file mode 100644
index 0000000000000000000000000000000000000000..d3c4bcfd79f48f92e249d93bb09eec51177522e5
--- /dev/null
+++ b/natural-images/masks/14.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d2c282c2d58e64256e2a656baf72bda766d603a0ee4bca3e9a86999406c18325
+size 2232
diff --git a/natural-images/masks/15.png b/natural-images/masks/15.png
new file mode 100644
index 0000000000000000000000000000000000000000..d3a0522ef230e82f503cf87079a17b4e1acc45b1
--- /dev/null
+++ b/natural-images/masks/15.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:642ca575a376b9b273f5f05ec65897dd0c1e9f9c3c51393b472549fc116d9cda
+size 2383
diff --git a/natural-images/masks/16.png b/natural-images/masks/16.png
new file mode 100644
index 0000000000000000000000000000000000000000..a3778870bd872211bdae0a9a2f58e2d22498584b
--- /dev/null
+++ b/natural-images/masks/16.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5617bde432cb1abfd325fbc8aecb266ae785a039bfa6de36fe5843ce5bfe802c
+size 2415
diff --git a/natural-images/masks/17.png b/natural-images/masks/17.png
new file mode 100644
index 0000000000000000000000000000000000000000..b3d23cb7db1610e2a00e124399384a64fd852319
--- /dev/null
+++ b/natural-images/masks/17.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a3f00f4e17e04f7f87c7d25c3fd98ee941b87c37bc779f9554d3388ec5690edd
+size 2589
diff --git a/natural-images/masks/18.png b/natural-images/masks/18.png
new file mode 100644
index 0000000000000000000000000000000000000000..909e4836766bb3f4c4cb81b447d84cad53d8d6ab
--- /dev/null
+++ b/natural-images/masks/18.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:350e4e4d498101670885d7a72632acef3611cbcc142e4535946ea3dd7b515a8a
+size 7628
diff --git a/natural-images/masks/19.png b/natural-images/masks/19.png
new file mode 100644
index 0000000000000000000000000000000000000000..b9d11722996169f8122b1270127954af731cfaf4
--- /dev/null
+++ b/natural-images/masks/19.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c8b532136277f9619756c11f05a1c03943a2026e7aec4fc623127f6dd5b66b46
+size 8139
diff --git a/natural-images/masks/2.png b/natural-images/masks/2.png
new file mode 100644
index 0000000000000000000000000000000000000000..8350c8c73d6beccc90acf3afc1b96866a99c262e
--- /dev/null
+++ b/natural-images/masks/2.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:56e531ba8244197449e77120c1e4739adc1ab9425c3cfe55984c8dbca7c85c46
+size 6818
diff --git a/natural-images/masks/20.png b/natural-images/masks/20.png
new file mode 100644
index 0000000000000000000000000000000000000000..6c88ce066a57c5f51d7ae22242bcec7a91652a59
--- /dev/null
+++ b/natural-images/masks/20.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:92338c688e09e8df1fda0cf8b904431454a0543bbd6e93fd7bd634e76f1249b2
+size 8457
diff --git a/natural-images/masks/21.png b/natural-images/masks/21.png
new file mode 100644
index 0000000000000000000000000000000000000000..91e17afc7433d9dcdf766db31ea021a6b8dcdbc9
--- /dev/null
+++ b/natural-images/masks/21.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8d53eb735bc54388ab3df5537ed81585ca40c0f48a0475ef64e4c84c0edf1a17
+size 3152
diff --git a/natural-images/masks/22.png b/natural-images/masks/22.png
new file mode 100644
index 0000000000000000000000000000000000000000..3c10b71597f9b050cf2adaa487413e043d14bb21
--- /dev/null
+++ b/natural-images/masks/22.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:52346479382130f937ea902ca7e761df45956ac617e7341404e6ac79fba0697c
+size 2232
diff --git a/natural-images/masks/23.png b/natural-images/masks/23.png
new file mode 100644
index 0000000000000000000000000000000000000000..05551e42349db35c84f951ac6303c7aabe066381
--- /dev/null
+++ b/natural-images/masks/23.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6152e9475e913ef80ec9341487acbeddc74e0c7b9bd066b1a2abc9c9e6c6e13d
+size 1593
diff --git a/natural-images/masks/24.png b/natural-images/masks/24.png
new file mode 100644
index 0000000000000000000000000000000000000000..66195933aff2349d401c2e69dc1fdbf3a9a9ff28
--- /dev/null
+++ b/natural-images/masks/24.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bacf2107e17efe6466d570e3167ce356809207a5ca86826ec9ee3d7d6e4bdccc
+size 2470
diff --git a/natural-images/masks/25.png b/natural-images/masks/25.png
new file mode 100644
index 0000000000000000000000000000000000000000..3d056ec65590e625d562470d02f898086563e865
--- /dev/null
+++ b/natural-images/masks/25.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5e62eb2e9e0bd09cafc944e1d552b361d6b1928e3335d584dcdd1b1a49ec9bee
+size 5587
diff --git a/natural-images/masks/26.png b/natural-images/masks/26.png
new file mode 100644
index 0000000000000000000000000000000000000000..f43b4f2878c7c856d6189d3f7c6fdcba0b5d54b5
--- /dev/null
+++ b/natural-images/masks/26.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f54fad4bc8e4f83082c62e75259a2f423310565568b7c537b7a7dcae0bc82b63
+size 5969
diff --git a/natural-images/masks/27.png b/natural-images/masks/27.png
new file mode 100644
index 0000000000000000000000000000000000000000..16bbb1be44b97311fdec38b6239c7cd9755447c8
--- /dev/null
+++ b/natural-images/masks/27.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9798ade665fd35b6b04c162a42cfc539b7ab53cb2c09954cd1c4288d96a9e9a0
+size 1819
diff --git a/natural-images/masks/28.png b/natural-images/masks/28.png
new file mode 100644
index 0000000000000000000000000000000000000000..e3252a0159de43c82a694d577b5f3557ad54e55e
--- /dev/null
+++ b/natural-images/masks/28.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:085c11ec9770d6e952a5bb33a4251fcc801fc74bf6f16c9d898b623bf129e441
+size 1875
diff --git a/natural-images/masks/29.png b/natural-images/masks/29.png
new file mode 100644
index 0000000000000000000000000000000000000000..709b6b5b4c6e76600e5164bca85341ca8344a15d
--- /dev/null
+++ b/natural-images/masks/29.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:af87c322383964f8971f8ee7da1acdfe5e95f286568e6d7f45a0590fe3fa2ad9
+size 1753
diff --git a/natural-images/masks/3.png b/natural-images/masks/3.png
new file mode 100644
index 0000000000000000000000000000000000000000..3551c0b2cdf4b102bcbf1f3aeefa4e830e80fd6c
--- /dev/null
+++ b/natural-images/masks/3.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2ca283e2df3a3375635099aa8a4c09f0c556e8e1c4a47f16fcb8a8abc9dfcccf
+size 2566
diff --git a/natural-images/masks/30.png b/natural-images/masks/30.png
new file mode 100644
index 0000000000000000000000000000000000000000..3b5f4ad8c33cd3e6bda4ab150f136d90e0f99c78
--- /dev/null
+++ b/natural-images/masks/30.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2ba2c38ad6b20d62707469be4b9ff498839c90f4dfa49add60d24d6018d390b1
+size 2894
diff --git a/natural-images/masks/31.png b/natural-images/masks/31.png
new file mode 100644
index 0000000000000000000000000000000000000000..5a70356d8a089a0b5ad8badaa844850d856afedf
--- /dev/null
+++ b/natural-images/masks/31.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a7076c912a4f0a999822593d1c2db52aa4651b96611379bdcbc1d2892f298651
+size 2184
diff --git a/natural-images/masks/32.png b/natural-images/masks/32.png
new file mode 100644
index 0000000000000000000000000000000000000000..0e39c8dda8e057de450554a05000255704e3d824
--- /dev/null
+++ b/natural-images/masks/32.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b92e37c60204de4bf663a041487dda7d957b4758d629be977d0f8c2a71a8460d
+size 7906
diff --git a/natural-images/masks/33.png b/natural-images/masks/33.png
new file mode 100644
index 0000000000000000000000000000000000000000..a842156723f1caf8895d2199762d820e9a2250ab
--- /dev/null
+++ b/natural-images/masks/33.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1737d2c9d291d8252f3b10ef3ff82d5cded393074350e97237a2d9a6617ad594
+size 5354
diff --git a/natural-images/masks/34.png b/natural-images/masks/34.png
new file mode 100644
index 0000000000000000000000000000000000000000..6c88ce066a57c5f51d7ae22242bcec7a91652a59
--- /dev/null
+++ b/natural-images/masks/34.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:92338c688e09e8df1fda0cf8b904431454a0543bbd6e93fd7bd634e76f1249b2
+size 8457
diff --git a/natural-images/masks/35.png b/natural-images/masks/35.png
new file mode 100644
index 0000000000000000000000000000000000000000..48b121082818e6614894bc1b59e8c7d243e6a672
--- /dev/null
+++ b/natural-images/masks/35.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3a59897945b5b0550cb16e64a2cc7fb1d81b29d24e50df6da69cc8081b1e9c65
+size 1870
diff --git a/natural-images/masks/36.png b/natural-images/masks/36.png
new file mode 100644
index 0000000000000000000000000000000000000000..5af645780fa947776a73c997f91381135c30c72d
--- /dev/null
+++ b/natural-images/masks/36.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1a7ebc74006a346d50833e5ced937d10e10bfb0e7215eacd12ef111e77e58c4a
+size 2111
diff --git a/natural-images/masks/37.png b/natural-images/masks/37.png
new file mode 100644
index 0000000000000000000000000000000000000000..60665804eaa45cee1785d5e3ef46e0d1d493f9ba
--- /dev/null
+++ b/natural-images/masks/37.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:875271cd7d468ba5c186d865cd90063d90a11bbe4271c1c0fb77975450376abf
+size 2413
diff --git a/natural-images/masks/38.png b/natural-images/masks/38.png
new file mode 100644
index 0000000000000000000000000000000000000000..b8ba99473aa3747279acfed6eecf29e53b19ee82
--- /dev/null
+++ b/natural-images/masks/38.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:98f7a542bef14c91f560770f4037b8c963c61687367fc56a9a9cf54d0892cfac
+size 3080
diff --git a/natural-images/masks/39.png b/natural-images/masks/39.png
new file mode 100644
index 0000000000000000000000000000000000000000..fb8ee57fc429a7777ae1e50b0e8dbe5dd7575934
--- /dev/null
+++ b/natural-images/masks/39.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6e890c7d3d535159660ef16008aaf7b2eb1f5c7d6b12fe31df879078fd65a544
+size 3884
diff --git a/natural-images/masks/4.png b/natural-images/masks/4.png
new file mode 100644
index 0000000000000000000000000000000000000000..74d2a0c66b99792dccb3a5eaf9c6678ffbdf3bf8
--- /dev/null
+++ b/natural-images/masks/4.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d5ec1e6977725f091c71501b6d51c590706d9f49b4cf053650da9f1378aeca4f
+size 6327
diff --git a/natural-images/masks/40.png b/natural-images/masks/40.png
new file mode 100644
index 0000000000000000000000000000000000000000..3c5f9be7309fe9b5635767292d084cbcd8a006f9
--- /dev/null
+++ b/natural-images/masks/40.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3c2d7fdcba00d85dfe228f610c2b215f8307dcfc1a56894880242ce569c5d0d6
+size 1256
diff --git a/natural-images/masks/41.png b/natural-images/masks/41.png
new file mode 100644
index 0000000000000000000000000000000000000000..8f6f66be6136f3439c2f637ea44c64f23e74df51
--- /dev/null
+++ b/natural-images/masks/41.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:90be795ff4bbb2ddc9104ddcbfb3e334cc1416bc89c99103eddebe8722d3497f
+size 3365
diff --git a/natural-images/masks/42.png b/natural-images/masks/42.png
new file mode 100644
index 0000000000000000000000000000000000000000..381f634fe1abc8a8c8c2590365a4dd564d245d9e
--- /dev/null
+++ b/natural-images/masks/42.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d969ead3e1f07278b3612dce6d46ac3c1195dbb3c1e8df24fd040d0e2c367ee8
+size 3207
diff --git a/natural-images/masks/43.png b/natural-images/masks/43.png
new file mode 100644
index 0000000000000000000000000000000000000000..89cde55f11b2a31eccd465e92b0f4d55017859b7
--- /dev/null
+++ b/natural-images/masks/43.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e846ad785013a299e03056972f75aba182249398f76473ed15a08874e2705f5d
+size 2026
diff --git a/natural-images/masks/44.png b/natural-images/masks/44.png
new file mode 100644
index 0000000000000000000000000000000000000000..f5c0bdd7175228bdf2405fe5e4a6225224b1d2f2
--- /dev/null
+++ b/natural-images/masks/44.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b1917ec32c419e793fed0e30587836b922f2d1b980af8d92ade443f32ad960e4
+size 6449
diff --git a/natural-images/masks/45.png b/natural-images/masks/45.png
new file mode 100644
index 0000000000000000000000000000000000000000..5628943740ca8b604cb5ad50800ab209c9171f41
--- /dev/null
+++ b/natural-images/masks/45.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ce75239f6f8a33a457edb21c45c25d5427d34603d61524efc72819d31677e543
+size 2808
diff --git a/natural-images/masks/46.png b/natural-images/masks/46.png
new file mode 100644
index 0000000000000000000000000000000000000000..99f1c4b8ca26e91ffa58839a449ce3531e64eac5
--- /dev/null
+++ b/natural-images/masks/46.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:35f371752745f209af849768406ad60d9996626ef7f65381c584c3ae23b95295
+size 2473
diff --git a/natural-images/masks/47.png b/natural-images/masks/47.png
new file mode 100644
index 0000000000000000000000000000000000000000..f993cf2dd336c5fee13199e2705e1ae2f5f7dc12
--- /dev/null
+++ b/natural-images/masks/47.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7e1b33ef997e49f35f7c5023add5feb1846fe6e75a89dd88120467620085f414
+size 10376
diff --git a/natural-images/masks/48.png b/natural-images/masks/48.png
new file mode 100644
index 0000000000000000000000000000000000000000..818f7f37b14763b2872aaf4348600f0f530c3b6e
--- /dev/null
+++ b/natural-images/masks/48.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dfa2005086b0f9e7785c115305594fe51223f30f4127b1d26c1b9262292264ac
+size 2151
diff --git a/natural-images/masks/49.png b/natural-images/masks/49.png
new file mode 100644
index 0000000000000000000000000000000000000000..96d47696d0930f8fe342798f9492c2cee57f2a68
--- /dev/null
+++ b/natural-images/masks/49.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6ab43863dc5c5c9196abc008c153c5dc107837ebc4ec7cf578ebcec14ef8c0b3
+size 2356
diff --git a/natural-images/masks/5.png b/natural-images/masks/5.png
new file mode 100644
index 0000000000000000000000000000000000000000..d0114d88b89db74baff03511ef2d5d6e780b45dc
--- /dev/null
+++ b/natural-images/masks/5.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1ef8705d46556f9d6e17d318a3555389dcbd17d42780fddbbf7ee52cb85033b0
+size 2247
diff --git a/natural-images/masks/50.png b/natural-images/masks/50.png
new file mode 100644
index 0000000000000000000000000000000000000000..6951d682498fbda3333e5988065595a08c2b3f22
--- /dev/null
+++ b/natural-images/masks/50.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6ac6387fef97857b2ff87642fe84569d4ac1a4f167ef43da788c76ed87767cec
+size 5038
diff --git a/natural-images/masks/51.png b/natural-images/masks/51.png
new file mode 100644
index 0000000000000000000000000000000000000000..370e76dfae7e35d144761c0cd84170628b3cdfd2
--- /dev/null
+++ b/natural-images/masks/51.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1a73137d8a4653a637047abb173851bf4322db2645cd5f058dd58f95b61b908b
+size 17817
diff --git a/natural-images/masks/52.png b/natural-images/masks/52.png
new file mode 100644
index 0000000000000000000000000000000000000000..13a3b164398c963f1be2fb7594f44864bac38257
--- /dev/null
+++ b/natural-images/masks/52.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bcaa16ad49d616130a621b22456d2a95cd01f7409984e9111af316b8802c9a44
+size 2025
diff --git a/natural-images/masks/53.png b/natural-images/masks/53.png
new file mode 100644
index 0000000000000000000000000000000000000000..a3769743b06babc21741c00f84dead4023d0d882
--- /dev/null
+++ b/natural-images/masks/53.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6dd392b887d679cb2b8d26afcca37d1a1e36fa133587527ac348538ad84c808f
+size 1929
diff --git a/natural-images/masks/54.png b/natural-images/masks/54.png
new file mode 100644
index 0000000000000000000000000000000000000000..a77c95acb92b02963a59e6e5db7b7c26328dec0a
--- /dev/null
+++ b/natural-images/masks/54.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8fcfb111e4129d783a33edd4357da3fe1610ec67c10a314280628dcc38d04a93
+size 3544
diff --git a/natural-images/masks/55.png b/natural-images/masks/55.png
new file mode 100644
index 0000000000000000000000000000000000000000..bdc9fc9379c699eb139662a30a4fc0664a015847
--- /dev/null
+++ b/natural-images/masks/55.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:093d26d8f937670e0c512f3da16bd2d9b586f044fd508f513cdc0f76465a3f11
+size 15275
diff --git a/natural-images/masks/56.png b/natural-images/masks/56.png
new file mode 100644
index 0000000000000000000000000000000000000000..80a1b770727330aa5d28f9d8e596aa668f5719c3
--- /dev/null
+++ b/natural-images/masks/56.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:39d988207b8605ec0ec5295c4a2e43ee0b8410611e210ec404889a570f23fc2f
+size 4499
diff --git a/natural-images/masks/57.png b/natural-images/masks/57.png
new file mode 100644
index 0000000000000000000000000000000000000000..3e8fe2f16e1192f723119b01ae78c569cd906641
--- /dev/null
+++ b/natural-images/masks/57.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:95608e97b979015b608bb2c58d745bbfd25f62c141d6e56b6497c90e08ff735c
+size 2749
diff --git a/natural-images/masks/58.png b/natural-images/masks/58.png
new file mode 100644
index 0000000000000000000000000000000000000000..2d63bfac2b7ed3328c3cb2a8017e0577b2620c21
--- /dev/null
+++ b/natural-images/masks/58.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:658d7623cfd976313457a869c1de97be3bca36fd4a76136f15b2f62667a4c7ee
+size 15381
diff --git a/natural-images/masks/59.png b/natural-images/masks/59.png
new file mode 100644
index 0000000000000000000000000000000000000000..909e4836766bb3f4c4cb81b447d84cad53d8d6ab
--- /dev/null
+++ b/natural-images/masks/59.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:350e4e4d498101670885d7a72632acef3611cbcc142e4535946ea3dd7b515a8a
+size 7628
diff --git a/natural-images/masks/6.png b/natural-images/masks/6.png
new file mode 100644
index 0000000000000000000000000000000000000000..5a70356d8a089a0b5ad8badaa844850d856afedf
--- /dev/null
+++ b/natural-images/masks/6.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a7076c912a4f0a999822593d1c2db52aa4651b96611379bdcbc1d2892f298651
+size 2184
diff --git a/natural-images/masks/60.png b/natural-images/masks/60.png
new file mode 100644
index 0000000000000000000000000000000000000000..211588ce779bcc43e1b02989720f02670638156e
--- /dev/null
+++ b/natural-images/masks/60.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a5800c59d2301b775688c0d1f93f07046233201562a019a98c12daa9ebada255
+size 2065
diff --git a/natural-images/masks/7.png b/natural-images/masks/7.png
new file mode 100644
index 0000000000000000000000000000000000000000..0ea2699eaffdcf79ccd7b12bf33119ca62eda2dd
--- /dev/null
+++ b/natural-images/masks/7.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a3fcedd6aecd0342b182ef6d9c2078db64a3a40015e18dcee821d90a4a6650fc
+size 7213
diff --git a/natural-images/masks/8.png b/natural-images/masks/8.png
new file mode 100644
index 0000000000000000000000000000000000000000..8350c8c73d6beccc90acf3afc1b96866a99c262e
--- /dev/null
+++ b/natural-images/masks/8.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:56e531ba8244197449e77120c1e4739adc1ab9425c3cfe55984c8dbca7c85c46
+size 6818
diff --git a/natural-images/masks/9.png b/natural-images/masks/9.png
new file mode 100644
index 0000000000000000000000000000000000000000..37e4db6438bae6df1523cf7b231b6628b10ea663
--- /dev/null
+++ b/natural-images/masks/9.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fb1388f1d99a8fc1d35d5a4b43d60fc7bdf0ee6bddb5a106a77b1c0e9cae073e
+size 13319
diff --git a/natural-images/sketches/1.png b/natural-images/sketches/1.png
new file mode 100644
index 0000000000000000000000000000000000000000..589b72eda1a70bda2d43ae33441b951a917c3ee8
--- /dev/null
+++ b/natural-images/sketches/1.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c7fd094cdd32a3bd179da83ee2671039cb674cf98fdd05e97319f87b7e9daf89
+size 2278
diff --git a/natural-images/sketches/10.png b/natural-images/sketches/10.png
new file mode 100644
index 0000000000000000000000000000000000000000..232df43bbbdcb06b9e664682535db90dc5bcad56
--- /dev/null
+++ b/natural-images/sketches/10.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a6903ac05bdd36530691adf54ed82f1cbfddf7eeebceb9aa6b96f5101eb1b402
+size 1024
diff --git a/natural-images/sketches/11.png b/natural-images/sketches/11.png
new file mode 100644
index 0000000000000000000000000000000000000000..9847844abfc8eb095e018663a7a8f6c4f62a6d6c
--- /dev/null
+++ b/natural-images/sketches/11.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:90427a1573ed65d1944ffb85c11d8385579d80b25eba72be3c3603b51c801d2e
+size 5548
diff --git a/natural-images/sketches/12.png b/natural-images/sketches/12.png
new file mode 100644
index 0000000000000000000000000000000000000000..b0d6b9753b1ee414bfd1791d3ae8b0fafefc6975
--- /dev/null
+++ b/natural-images/sketches/12.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b8377ed4778046ae7b109a98b0d07567229c490756c71af3e380c971c4628f76
+size 1196
diff --git a/natural-images/sketches/13.png b/natural-images/sketches/13.png
new file mode 100644
index 0000000000000000000000000000000000000000..970f5253bd854c45d5363f05ce003da59768dc68
--- /dev/null
+++ b/natural-images/sketches/13.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d69f24e11bba99493d67e0bfc2affd4f65fcdbf5cf93cd33c79b047120405f7d
+size 981
diff --git a/natural-images/sketches/14.png b/natural-images/sketches/14.png
new file mode 100644
index 0000000000000000000000000000000000000000..4670ee7c12268166eddca457d23edd65f7fdb75e
--- /dev/null
+++ b/natural-images/sketches/14.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6fccea8bf37267e5b2c1ab541f9055a7f3d45baec873f46f6f2cb3a95d5820ad
+size 1358
diff --git a/natural-images/sketches/15.png b/natural-images/sketches/15.png
new file mode 100644
index 0000000000000000000000000000000000000000..03cf723572268e3f226e3b80e504e11ca388b4bf
--- /dev/null
+++ b/natural-images/sketches/15.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1a3b3bcaf0060be32fdfa374ec1e7c4d2c1102b5569db50021212e5ed9219d16
+size 1899
diff --git a/natural-images/sketches/16.png b/natural-images/sketches/16.png
new file mode 100644
index 0000000000000000000000000000000000000000..adf0cae2108bb7da47b2122d684b0025e57fc750
--- /dev/null
+++ b/natural-images/sketches/16.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:83a91033f0346fdbe55fd034a38c6c5e863d93c1979c05d5342755ddc5b96ae4
+size 1257
diff --git a/natural-images/sketches/17.png b/natural-images/sketches/17.png
new file mode 100644
index 0000000000000000000000000000000000000000..9f89f386492105db01421f256810b6c210d367f9
--- /dev/null
+++ b/natural-images/sketches/17.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:10da2b04cd6dd3e86a5e3531379a38a7afbf4db37641d75831f9ac4032641784
+size 1273
diff --git a/natural-images/sketches/18.png b/natural-images/sketches/18.png
new file mode 100644
index 0000000000000000000000000000000000000000..758ceffb30ed44e0a5432ac15e346348d93741a0
--- /dev/null
+++ b/natural-images/sketches/18.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7764668db65c8513a8728678b3086a90b05504133e3145c939f0f696837f2e26
+size 1925
diff --git a/natural-images/sketches/19.png b/natural-images/sketches/19.png
new file mode 100644
index 0000000000000000000000000000000000000000..a67865ca0caab931f073ac56aa273b711c973d30
--- /dev/null
+++ b/natural-images/sketches/19.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ece6f82d84943aac12ee6d9d622ce352c637412ef635d5cc80ac4a75e32b3f40
+size 5459
diff --git a/natural-images/sketches/2.png b/natural-images/sketches/2.png
new file mode 100644
index 0000000000000000000000000000000000000000..e91724547c303dbfd5d6ae102aa73011370518c9
--- /dev/null
+++ b/natural-images/sketches/2.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fd0f1017b5dec67c44cfd647d88237e72ca1b02a4aef2ff644ec210efe88e04f
+size 1525
diff --git a/natural-images/sketches/20.png b/natural-images/sketches/20.png
new file mode 100644
index 0000000000000000000000000000000000000000..4938ea247e555d4f5620874c33384c34420d77f3
--- /dev/null
+++ b/natural-images/sketches/20.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:08c47dd3ff43a6dd38721f7410d977c00660249b0e35bd55ced839598c6a841a
+size 2516
diff --git a/natural-images/sketches/21.png b/natural-images/sketches/21.png
new file mode 100644
index 0000000000000000000000000000000000000000..fc989f8b3ce79768204a22fe854b90467b7456d6
--- /dev/null
+++ b/natural-images/sketches/21.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:72178ed3d7055072dd017355bd816280bafb6b84fd3c2ea542d4041b13416153
+size 943
diff --git a/natural-images/sketches/22.png b/natural-images/sketches/22.png
new file mode 100644
index 0000000000000000000000000000000000000000..b65d4d9dc99d92c06afaa4d27362596fab921204
--- /dev/null
+++ b/natural-images/sketches/22.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:46e75fe595699c1942d60e957c5969d0ae11382c3f94f462ac356000c087e671
+size 2768
diff --git a/natural-images/sketches/23.png b/natural-images/sketches/23.png
new file mode 100644
index 0000000000000000000000000000000000000000..83eb12ece77a1ef3049bd10d9e07f120ddb4b92d
--- /dev/null
+++ b/natural-images/sketches/23.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c488af7f6417b571230c03424c9b80b6ee3ffc926737e95c1bbac3daeb6067c8
+size 1100
diff --git a/natural-images/sketches/24.png b/natural-images/sketches/24.png
new file mode 100644
index 0000000000000000000000000000000000000000..40fe837d58a973d74a3d8ef124106bb5626d442c
--- /dev/null
+++ b/natural-images/sketches/24.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:79fd99b05db19f9b5b65bd7f864756ed465311172e8fcd3ea5576a1d98fa146e
+size 1454
diff --git a/natural-images/sketches/25.png b/natural-images/sketches/25.png
new file mode 100644
index 0000000000000000000000000000000000000000..82739fe2d3de150b5ec093f8e76c62367739a9ee
--- /dev/null
+++ b/natural-images/sketches/25.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:195f59c22aae1f6b127b009152c05072e207a4f9c30b8e51c22afdf847ad862f
+size 2847
diff --git a/natural-images/sketches/26.png b/natural-images/sketches/26.png
new file mode 100644
index 0000000000000000000000000000000000000000..c072ee2e2f44769aa3335cb9afc3581e76532b65
--- /dev/null
+++ b/natural-images/sketches/26.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:87e7cf5e65205dfabf98704768298bf4a51a2f7c078161e74d2f3f221d4d9805
+size 4164
diff --git a/natural-images/sketches/27.png b/natural-images/sketches/27.png
new file mode 100644
index 0000000000000000000000000000000000000000..bbeae96715e626428e25f095f38773cf0ae03f21
--- /dev/null
+++ b/natural-images/sketches/27.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a57c31013ddf712721f37a72a560cd43ec12dee2d853c163145fe44ea359b534
+size 999
diff --git a/natural-images/sketches/28.png b/natural-images/sketches/28.png
new file mode 100644
index 0000000000000000000000000000000000000000..792e65bb1531ee2ae3b90ecbc83a0395e323eb4c
--- /dev/null
+++ b/natural-images/sketches/28.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:13d53afd9e2d328738037872af10ff5d7507293631c047bc98e8633aa00b002a
+size 1201
diff --git a/natural-images/sketches/29.png b/natural-images/sketches/29.png
new file mode 100644
index 0000000000000000000000000000000000000000..3802eed1895e1955e8a87bad23c57ecc59b87554
--- /dev/null
+++ b/natural-images/sketches/29.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:29afc0440ae9d35b103ae74d9ee9607e527a0ed90c6d0557970a44024e3d074d
+size 1103
diff --git a/natural-images/sketches/3.png b/natural-images/sketches/3.png
new file mode 100644
index 0000000000000000000000000000000000000000..771c7dddd24338007bbdcc571bf7ec2190562bd1
--- /dev/null
+++ b/natural-images/sketches/3.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f5bffbc4cc7a94583cc8ad57671cc72bb7450f45088a8eef372ac38bd5120ea0
+size 2522
diff --git a/natural-images/sketches/30.png b/natural-images/sketches/30.png
new file mode 100644
index 0000000000000000000000000000000000000000..287403ba70ef7ae26748c894a73bee52653d6820
--- /dev/null
+++ b/natural-images/sketches/30.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7ed65478837ec9d69bc4f55f67ebb865345b19c28b3f7f2faf8d7b5fcc9e3058
+size 1653
diff --git a/natural-images/sketches/31.png b/natural-images/sketches/31.png
new file mode 100644
index 0000000000000000000000000000000000000000..de4ed768a28767cd4a67e5c266e815ad082aa581
--- /dev/null
+++ b/natural-images/sketches/31.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7fc09286c20d59bc0e8c72befd4c56511faf0758c3fa729343baa3c7d4aef464
+size 6206
diff --git a/natural-images/sketches/32.png b/natural-images/sketches/32.png
new file mode 100644
index 0000000000000000000000000000000000000000..d87567254dd8f1df37ec524d4a28db73e1b9cd37
--- /dev/null
+++ b/natural-images/sketches/32.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:be752088f816defdfd7e482dc29a2388bebf0f8c6ba98b2deecc34dcfcc6e143
+size 1037
diff --git a/natural-images/sketches/33.png b/natural-images/sketches/33.png
new file mode 100644
index 0000000000000000000000000000000000000000..b5b7d87ee22976abbbd4865a9b8f1497b69cbc1a
--- /dev/null
+++ b/natural-images/sketches/33.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:928aaf70c4aeb1731bc4240d89a3782b530cf5bf6c455a8b6485164b2f786a8c
+size 3241
diff --git a/natural-images/sketches/34.png b/natural-images/sketches/34.png
new file mode 100644
index 0000000000000000000000000000000000000000..81125a7d6b81d96deb5b66f698117a87a16c6e12
--- /dev/null
+++ b/natural-images/sketches/34.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7952031fc30d59a0d2403f06e5287dc4e1fd333dc0622a8f06bb41a69409e648
+size 3552
diff --git a/natural-images/sketches/35.png b/natural-images/sketches/35.png
new file mode 100644
index 0000000000000000000000000000000000000000..cda281d96f2ae052d1884dba7afd100d36135335
--- /dev/null
+++ b/natural-images/sketches/35.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8c33fdbbe8598dd2f32833ef385878ea5f6281ea3a7a946fdf0976bbabb73832
+size 5022
diff --git a/natural-images/sketches/36.png b/natural-images/sketches/36.png
new file mode 100644
index 0000000000000000000000000000000000000000..e4bcc60fd736234411f693999badc1618359d026
--- /dev/null
+++ b/natural-images/sketches/36.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:347d379a16d41aeff4c9857f9ad2d9e748285b2b75c70aa5bca15c2a4cd446ea
+size 1145
diff --git a/natural-images/sketches/37.png b/natural-images/sketches/37.png
new file mode 100644
index 0000000000000000000000000000000000000000..f3ac14e2a875555ca07deff6f12903678fe4c40d
--- /dev/null
+++ b/natural-images/sketches/37.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f03ec0cf3070c545eb7a768657bb74790ea047a6c3606da9aaf9d55251704215
+size 1675
diff --git a/natural-images/sketches/38.png b/natural-images/sketches/38.png
new file mode 100644
index 0000000000000000000000000000000000000000..fceeacbfcbb6a730381b622db75896febda83122
--- /dev/null
+++ b/natural-images/sketches/38.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9aa27c46ec05200f1cf9314679f199f37297c2b96a88123fad3b56889a4cabd3
+size 1428
diff --git a/natural-images/sketches/39.png b/natural-images/sketches/39.png
new file mode 100644
index 0000000000000000000000000000000000000000..67ac815cd3a1c4b12926281539955ba99da5c974
--- /dev/null
+++ b/natural-images/sketches/39.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:da022525a2eddc9f07df5c4a56672fc60d4e7ee301be5056c0cf2f2004689560
+size 1368
diff --git a/natural-images/sketches/4.png b/natural-images/sketches/4.png
new file mode 100644
index 0000000000000000000000000000000000000000..33a8f62990606d21f769a7227efa8e2d3ae3e467
--- /dev/null
+++ b/natural-images/sketches/4.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:40450358ff45d9c3342e750b343d72e7f7516311ff1c1d61f641db4e88fefbd4
+size 2307
diff --git a/natural-images/sketches/40.png b/natural-images/sketches/40.png
new file mode 100644
index 0000000000000000000000000000000000000000..a6d1556e4b46cd5daf355c82a576c5e734254aad
--- /dev/null
+++ b/natural-images/sketches/40.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a6318f44880fa1e009c704109e4b6b7242161a7852a75078fcd32fdba8f010e0
+size 1751
diff --git a/natural-images/sketches/41.png b/natural-images/sketches/41.png
new file mode 100644
index 0000000000000000000000000000000000000000..5116f2cd11ccfedf61793c9ae5107393e7d9669a
--- /dev/null
+++ b/natural-images/sketches/41.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:78413aac223057353393dd066fffc4f5fc90e28475aead3e25de7a207594e774
+size 5927
diff --git a/natural-images/sketches/42.png b/natural-images/sketches/42.png
new file mode 100644
index 0000000000000000000000000000000000000000..deb51ab257f5d72ad81f8bd19a5445a040253998
--- /dev/null
+++ b/natural-images/sketches/42.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e37d667c348392222aa6a4b59ec65ed502185282c89c7e4f2d9c8ded619c7ef7
+size 1251
diff --git a/natural-images/sketches/43.png b/natural-images/sketches/43.png
new file mode 100644
index 0000000000000000000000000000000000000000..47a7a5e75215739506d034527c7d7e03098e9124
--- /dev/null
+++ b/natural-images/sketches/43.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb0d4f270b5c35b73df246f1eec3b6d3047c0d3cb342fb7da92f5a1956345fd8
+size 1728
diff --git a/natural-images/sketches/44.png b/natural-images/sketches/44.png
new file mode 100644
index 0000000000000000000000000000000000000000..d91355409fd9f0e05d178c5e078cdbec16b35956
--- /dev/null
+++ b/natural-images/sketches/44.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:107a899ae7ebdeb8ceb9340b2704a8e4fc75871691caadd8f36709d3c9d4ca5e
+size 1023
diff --git a/natural-images/sketches/45.png b/natural-images/sketches/45.png
new file mode 100644
index 0000000000000000000000000000000000000000..9f72f5229050889cfcfceac72e2ad9e5a1cae26d
--- /dev/null
+++ b/natural-images/sketches/45.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e010ed638987b02af0040b05f69fc7729bfbc2a1aee37aa5d85da9fd42de3689
+size 1456
diff --git a/natural-images/sketches/46.png b/natural-images/sketches/46.png
new file mode 100644
index 0000000000000000000000000000000000000000..ee886a8dfd59a2e5b36fdfae01e580c49c11b729
--- /dev/null
+++ b/natural-images/sketches/46.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3e33d9c507c9fbabc87f68a916fe61ca07e51d53eb18bc5866b753419e238274
+size 1917
diff --git a/natural-images/sketches/47.png b/natural-images/sketches/47.png
new file mode 100644
index 0000000000000000000000000000000000000000..0285e450adf8038bfe0d93c3da1940ab99f662d6
--- /dev/null
+++ b/natural-images/sketches/47.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:24812d8c4f0a0943a1e4abfcaa593efc560164295cd5f0257fc7641fbbd918b8
+size 2396
diff --git a/natural-images/sketches/48.png b/natural-images/sketches/48.png
new file mode 100644
index 0000000000000000000000000000000000000000..d77fb1c450d399388037e6c485c44c878825a526
--- /dev/null
+++ b/natural-images/sketches/48.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3622fcf80b477f1b8e8379890f8b58554f449864c4d8bb126f156ffc16357ad4
+size 1098
diff --git a/natural-images/sketches/49.png b/natural-images/sketches/49.png
new file mode 100644
index 0000000000000000000000000000000000000000..63a2834403cd60f18141330965eeb187cb657a97
--- /dev/null
+++ b/natural-images/sketches/49.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e13516207df1b362e0468acb802ba828b24d3e0285ab42f7b5c281db347fc40b
+size 3429
diff --git a/natural-images/sketches/5.png b/natural-images/sketches/5.png
new file mode 100644
index 0000000000000000000000000000000000000000..f3a5af760cc4e3e3d690114ad24bfeb948e35a81
--- /dev/null
+++ b/natural-images/sketches/5.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d03c8f26f1eebe36407e7bce61bedea8cf6b75d4ff605fc714c5c4ae112b499d
+size 1024
diff --git a/natural-images/sketches/50.png b/natural-images/sketches/50.png
new file mode 100644
index 0000000000000000000000000000000000000000..cb7bcf9cba3d80833eae79b7b153e2d1db8b6ebd
--- /dev/null
+++ b/natural-images/sketches/50.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:620cbdbd7ff8275fd5af2dd400310bfd1380cdd410ed81a471dfdb09df4408f1
+size 3226
diff --git a/natural-images/sketches/51.png b/natural-images/sketches/51.png
new file mode 100644
index 0000000000000000000000000000000000000000..93df9b26db75080e287381c7fac6445428ee14d9
--- /dev/null
+++ b/natural-images/sketches/51.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7126b82e7845f0be8075cc2db05f8c9bf024734068eff2f19ed91660c98a461c
+size 5755
diff --git a/natural-images/sketches/52.png b/natural-images/sketches/52.png
new file mode 100644
index 0000000000000000000000000000000000000000..1818bd8211943553d5dec98212dcc91373c983e0
--- /dev/null
+++ b/natural-images/sketches/52.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3b4b5d7d71b0ab4799fca668e9d89c00712ccc7ca79234131dc6c7a5f53ee49b
+size 6417
diff --git a/natural-images/sketches/53.png b/natural-images/sketches/53.png
new file mode 100644
index 0000000000000000000000000000000000000000..7857850d1fcf21abbcae9ddd9b5835cb5cd87a50
--- /dev/null
+++ b/natural-images/sketches/53.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8a601d1e3ad6958dc07722dd9ac8847544979f0ef1f2894706c33a8f0c21d6f7
+size 1756
diff --git a/natural-images/sketches/54.png b/natural-images/sketches/54.png
new file mode 100644
index 0000000000000000000000000000000000000000..71008b532294a59774291189ed0f982c0e3d1748
--- /dev/null
+++ b/natural-images/sketches/54.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dd6ca33e09dcc6f9a1ffa2e9c630d2b82ffa065feba9aa9c9b28977e99964130
+size 1691
diff --git a/natural-images/sketches/55.png b/natural-images/sketches/55.png
new file mode 100644
index 0000000000000000000000000000000000000000..c57e10fc4080177b5915ccd857a2f346b8c34357
--- /dev/null
+++ b/natural-images/sketches/55.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:40553f005319b0873b56b65c9642a05519e6c6637840ca4575537f817e39613b
+size 6180
diff --git a/natural-images/sketches/56.png b/natural-images/sketches/56.png
new file mode 100644
index 0000000000000000000000000000000000000000..d2a2a62c2dd52a2b75009971a9f80739b89625bd
--- /dev/null
+++ b/natural-images/sketches/56.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fadf01c728268f39d9984a18122793511be078f511eee0d15daed902a36d44e4
+size 1102
diff --git a/natural-images/sketches/57.png b/natural-images/sketches/57.png
new file mode 100644
index 0000000000000000000000000000000000000000..3f4163b77c3747b0baeca5c26e76fcf13ca15462
--- /dev/null
+++ b/natural-images/sketches/57.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:be758cac31d78eeb968523a65b85f5e16fcfa41cb4e3c0e36aadde2b6047d005
+size 1195
diff --git a/natural-images/sketches/58.png b/natural-images/sketches/58.png
new file mode 100644
index 0000000000000000000000000000000000000000..d16edb4cd2d538be9a564255804b0e1da286cb70
--- /dev/null
+++ b/natural-images/sketches/58.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cb11f05e8fd9b5691bc081b2692d9c0e17714e0639a951069de599abce8c1d61
+size 3848
diff --git a/natural-images/sketches/59.png b/natural-images/sketches/59.png
new file mode 100644
index 0000000000000000000000000000000000000000..589b72eda1a70bda2d43ae33441b951a917c3ee8
--- /dev/null
+++ b/natural-images/sketches/59.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c7fd094cdd32a3bd179da83ee2671039cb674cf98fdd05e97319f87b7e9daf89
+size 2278
diff --git a/natural-images/sketches/6.png b/natural-images/sketches/6.png
new file mode 100644
index 0000000000000000000000000000000000000000..17f9a63e1bf2b10a6f3bad3ba8857d1195d4c346
--- /dev/null
+++ b/natural-images/sketches/6.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8d722e8a842153ac113054bc069784ac310311a07aab679aeae03c543f34e7d6
+size 37176
diff --git a/natural-images/sketches/60.png b/natural-images/sketches/60.png
new file mode 100644
index 0000000000000000000000000000000000000000..6de79b4d9161aad4f01695da5055b8948a31a9e9
--- /dev/null
+++ b/natural-images/sketches/60.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3d761a50133602a527eb57b851593af16ba787a5ba9367d4d4f3ceec6085d51c
+size 1229
diff --git a/natural-images/sketches/7.png b/natural-images/sketches/7.png
new file mode 100644
index 0000000000000000000000000000000000000000..487d983fcda05894ab2ab456cb73d6c6fc60b47a
--- /dev/null
+++ b/natural-images/sketches/7.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:61e3658b7150022d1418f46e5dcf7b62b4d9a642527d861c18b5d70cde1de696
+size 3440
diff --git a/natural-images/sketches/8.png b/natural-images/sketches/8.png
new file mode 100644
index 0000000000000000000000000000000000000000..42d483737d149e13ae585f4fd1cad5d6038c4fdb
--- /dev/null
+++ b/natural-images/sketches/8.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fea0be4050d947cdc0282040a5a8cf7c9542699a72e7be608f3bbbef324a656f
+size 2893
diff --git a/natural-images/sketches/9.png b/natural-images/sketches/9.png
new file mode 100644
index 0000000000000000000000000000000000000000..6eacbdc9cde4e68411e8c286e47e62dae758fcc2
--- /dev/null
+++ b/natural-images/sketches/9.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bfd1d830878db7d4c1966160874c30f8f595ddd99d7518d441b55c7f0f843919
+size 6944