Update app.py

app.py

@@ -1,363 +1,363 @@
-"""
-This file is used for deploying hugging face demo:
-https://huggingface.co/spaces/
-"""
-
-import sys
-sys.path.append('StableSR')
-import os
-import cv2
-import torch
-import torch.nn.functional as F
-import gradio as gr
-import torchvision
-from torchvision.transforms.functional import normalize
-from ldm.util import instantiate_from_config
-from torch import autocast
-import PIL
-import numpy as np
-from pytorch_lightning import seed_everything
-from contextlib import nullcontext
-from omegaconf import OmegaConf
-from PIL import Image
-import copy
-from scripts.wavelet_color_fix import wavelet_reconstruction, adaptive_instance_normalization
-from scripts.util_image import ImageSpliterTh
-from basicsr.utils.download_util import load_file_from_url
-from einops import rearrange, repeat
-
-# os.system("pip freeze")
-
-pretrain_model_url = {
-	'stablesr_512': 'https://huggingface.co/Iceclear/StableSR/resolve/main/stablesr_000117.ckpt',
-	'stablesr_768': 'https://huggingface.co/Iceclear/StableSR/resolve/main/stablesr_768v_000139.ckpt',
-	'CFW': 'https://huggingface.co/Iceclear/StableSR/resolve/main/vqgan_cfw_00011.ckpt',
-}
-# download weights
-if not os.path.exists('./stablesr_000117.ckpt'):
-	load_file_from_url(url=pretrain_model_url['stablesr_512'], model_dir='./', progress=True, file_name=None)
-if not os.path.exists('./stablesr_768v_000139.ckpt'):
-	load_file_from_url(url=pretrain_model_url['stablesr_768'], model_dir='./', progress=True, file_name=None)
-if not os.path.exists('./vqgan_cfw_00011.ckpt'):
-	load_file_from_url(url=pretrain_model_url['CFW'], model_dir='./', progress=True, file_name=None)
-
-# download images
-torch.hub.download_url_to_file(
-	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet128/Lincoln.png',
-	'01.png')
-torch.hub.download_url_to_file(
-	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet128/oldphoto6.png',
-	'02.png')
-torch.hub.download_url_to_file(
-	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet128/comic2.png',
-	'03.png')
-torch.hub.download_url_to_file(
-	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet128/OST_120.png',
-	'04.png')
-torch.hub.download_url_to_file(
-	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet65/comic3.png',
-	'05.png')
-
-def load_img(path):
-	image = Image.open(path).convert("RGB")
-	w, h = image.size
-	w, h = map(lambda x: x - x % 32, (w, h))  # resize to integer multiple of 32
-	image = image.resize((w, h), resample=PIL.Image.LANCZOS)
-	image = np.array(image).astype(np.float32) / 255.0
-	image = image[None].transpose(0, 3, 1, 2)
-	image = torch.from_numpy(image)
-	return 2.*image - 1.
-
-def space_timesteps(num_timesteps, section_counts):
-	"""
-	Create a list of timesteps to use from an original diffusion process,
-	given the number of timesteps we want to take from equally-sized portions
-	of the original process.
-	For example, if there's 300 timesteps and the section counts are [10,15,20]
-	then the first 100 timesteps are strided to be 10 timesteps, the second 100
-	are strided to be 15 timesteps, and the final 100 are strided to be 20.
-	If the stride is a string starting with "ddim", then the fixed striding
-	from the DDIM paper is used, and only one section is allowed.
-	:param num_timesteps: the number of diffusion steps in the original
-							process to divide up.
-	:param section_counts: either a list of numbers, or a string containing
-							 comma-separated numbers, indicating the step count
-							 per section. As a special case, use "ddimN" where N
-							 is a number of steps to use the striding from the
-							 DDIM paper.
-	:return: a set of diffusion steps from the original process to use.
-	"""
-	if isinstance(section_counts, str):
-		if section_counts.startswith("ddim"):
-			desired_count = int(section_counts[len("ddim"):])
-			for i in range(1, num_timesteps):
-				if len(range(0, num_timesteps, i)) == desired_count:
-					return set(range(0, num_timesteps, i))
-			raise ValueError(
-				f"cannot create exactly {num_timesteps} steps with an integer stride"
-			)
-		section_counts = [int(x) for x in section_counts.split(",")]   #[250,]
-	size_per = num_timesteps // len(section_counts)
-	extra = num_timesteps % len(section_counts)
-	start_idx = 0
-	all_steps = []
-	for i, section_count in enumerate(section_counts):
-		size = size_per + (1 if i < extra else 0)
-		if size < section_count:
-			raise ValueError(
-				f"cannot divide section of {size} steps into {section_count}"
-			)
-		if section_count <= 1:
-			frac_stride = 1
-		else:
-			frac_stride = (size - 1) / (section_count - 1)
-		cur_idx = 0.0
-		taken_steps = []
-		for _ in range(section_count):
-			taken_steps.append(start_idx + round(cur_idx))
-			cur_idx += frac_stride
-		all_steps += taken_steps
-		start_idx += size
-	return set(all_steps)
-
-def chunk(it, size):
-	it = iter(it)
-	return iter(lambda: tuple(islice(it, size)), ())
-
-def load_model_from_config(config, ckpt, verbose=False):
-	print(f"Loading model from {ckpt}")
-	pl_sd = torch.load(ckpt, map_location="cpu")
-	if "global_step" in pl_sd:
-		print(f"Global Step: {pl_sd['global_step']}")
-	sd = pl_sd["state_dict"]
-	model = instantiate_from_config(config.model)
-	m, u = model.load_state_dict(sd, strict=False)
-	if len(m) > 0 and verbose:
-		print("missing keys:")
-		print(m)
-	if len(u) > 0 and verbose:
-		print("unexpected keys:")
-		print(u)
-
-	model.cuda()
-	model.eval()
-	return model
-
-# device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
-device = torch.device("cuda")
-vqgan_config = OmegaConf.load("./configs/autoencoder/autoencoder_kl_64x64x4_resi.yaml")
-vq_model = load_model_from_config(vqgan_config, './vqgan_cfw_00011.ckpt')
-vq_model = vq_model.to(device)
-
-os.makedirs('output', exist_ok=True)
-
-def inference(image, upscale, dec_w, seed, model_type, ddpm_steps, colorfix_type):
-	"""Run a single prediction on the model"""
-	precision_scope = autocast
-	vq_model.decoder.fusion_w = dec_w
-	seed_everything(seed)
-
-	if model_type == '512':
-		config = OmegaConf.load("./configs/stableSRNew/v2-finetune_text_T_512.yaml")
-		model = load_model_from_config(config, "./stablesr_000117.ckpt")
-		min_size = 512
-	else:
-		config = OmegaConf.load("./configs/stableSRNew/v2-finetune_text_T_768v.yaml")
-		model = load_model_from_config(config, "./stablesr_768v_000139.ckpt")
-		min_size = 768
-
-	model = model.to(device)
-	model.configs = config
-	model.register_schedule(given_betas=None, beta_schedule="linear", timesteps=1000,
-							linear_start=0.00085, linear_end=0.0120, cosine_s=8e-3)
-	model.num_timesteps = 1000
-
-	sqrt_alphas_cumprod = copy.deepcopy(model.sqrt_alphas_cumprod)
-	sqrt_one_minus_alphas_cumprod = copy.deepcopy(model.sqrt_one_minus_alphas_cumprod)
-
-	use_timesteps = set(space_timesteps(1000, [ddpm_steps]))
-	last_alpha_cumprod = 1.0
-	new_betas = []
-	timestep_map = []
-	for i, alpha_cumprod in enumerate(model.alphas_cumprod):
-		if i in use_timesteps:
-			new_betas.append(1 - alpha_cumprod / last_alpha_cumprod)
-			last_alpha_cumprod = alpha_cumprod
-			timestep_map.append(i)
-	new_betas = [beta.data.cpu().numpy() for beta in new_betas]
-	model.register_schedule(given_betas=np.array(new_betas), timesteps=len(new_betas))
-	model.num_timesteps = 1000
-	model.ori_timesteps = list(use_timesteps)
-	model.ori_timesteps.sort()
-	model = model.to(device)
-
-	try: # global try
-			with torch.no_grad():
-				with precision_scope("cuda"):
-					with model.ema_scope():
-						init_image = load_img(image)
-						init_image = F.interpolate(
-									init_image,
-									size=(int(init_image.size(-2)*upscale),
-											int(init_image.size(-1)*upscale)),
-									mode='bicubic',
-									)
-
-						if init_image.size(-1) < min_size or init_image.size(-2) < min_size:
-							ori_size = init_image.size()
-							rescale = min_size * 1.0 / min(init_image.size(-2), init_image.size(-1))
-							new_h = max(int(ori_size[-2]*rescale), min_size)
-							new_w = max(int(ori_size[-1]*rescale), min_size)
-							init_template = F.interpolate(
-										init_image,
-										size=(new_h, new_w),
-										mode='bicubic',
-										)
-						else:
-							init_template = init_image
-							rescale = 1
-						init_template = init_template.clamp(-1, 1)
-						assert init_template.size(-1) >= min_size
-						assert init_template.size(-2) >= min_size
-
-						init_template = init_template.type(torch.float16).to(device)
-
-						if init_template.size(-1) <= 1280 or init_template.size(-2) <= 1280:
-							init_latent_generator, enc_fea_lq = vq_model.encode(init_template)
-							init_latent = model.get_first_stage_encoding(init_latent_generator)
-							text_init = ['']*init_template.size(0)
-							semantic_c = model.cond_stage_model(text_init)
-
-							noise = torch.randn_like(init_latent)
-
-							t = repeat(torch.tensor([999]), '1 -> b', b=init_image.size(0))
-							t = t.to(device).long()
-							x_T = model.q_sample_respace(x_start=init_latent, t=t, sqrt_alphas_cumprod=sqrt_alphas_cumprod, sqrt_one_minus_alphas_cumprod=sqrt_one_minus_alphas_cumprod, noise=noise)
-
-							if init_template.size(-1)<= min_size and init_template.size(-2) <= min_size:
-								samples, _ = model.sample(cond=semantic_c, struct_cond=init_latent, batch_size=init_template.size(0), timesteps=ddpm_steps, time_replace=ddpm_steps, x_T=x_T, return_intermediates=True)
-							else:
-								samples, _ = model.sample_canvas(cond=semantic_c, struct_cond=init_latent, batch_size=init_template.size(0), timesteps=ddpm_steps, time_replace=ddpm_steps, x_T=x_T, return_intermediates=True, tile_size=int(min_size/8), tile_overlap=min_size//16, batch_size_sample=init_template.size(0))
-							x_samples = vq_model.decode(samples * 1. / model.scale_factor, enc_fea_lq)
-							if colorfix_type == 'adain':
-								x_samples = adaptive_instance_normalization(x_samples, init_template)
-							elif colorfix_type == 'wavelet':
-								x_samples = wavelet_reconstruction(x_samples, init_template)
-							x_samples = torch.clamp((x_samples + 1.0) / 2.0, min=0.0, max=1.0)
-						else:
-							im_spliter = ImageSpliterTh(init_template, 1280, 1000, sf=1)
-							for im_lq_pch, index_infos in im_spliter:
-								init_latent = model.get_first_stage_encoding(model.encode_first_stage(im_lq_pch))  # move to latent space
-								text_init = ['']*init_latent.size(0)
-								semantic_c = model.cond_stage_model(text_init)
-								noise = torch.randn_like(init_latent)
-								# If you would like to start from the intermediate steps, you can add noise to LR to the specific steps.
-								t = repeat(torch.tensor([999]), '1 -> b', b=init_template.size(0))
-								t = t.to(device).long()
-								x_T = model.q_sample_respace(x_start=init_latent, t=t, sqrt_alphas_cumprod=sqrt_alphas_cumprod, sqrt_one_minus_alphas_cumprod=sqrt_one_minus_alphas_cumprod, noise=noise)
-								# x_T = noise
-								samples, _ = model.sample_canvas(cond=semantic_c, struct_cond=init_latent, batch_size=im_lq_pch.size(0), timesteps=ddpm_steps, time_replace=ddpm_steps, x_T=x_T, return_intermediates=True, tile_size=int(min_size/8), tile_overlap=min_size//16, batch_size_sample=im_lq_pch.size(0))
-								_, enc_fea_lq = vq_model.encode(im_lq_pch)
-								x_samples = vq_model.decode(samples * 1. / model.scale_factor, enc_fea_lq)
-								if colorfix_type == 'adain':
-									x_samples = adaptive_instance_normalization(x_samples, im_lq_pch)
-								elif colorfix_type == 'wavelet':
-									x_samples = wavelet_reconstruction(x_samples, im_lq_pch)
-								im_spliter.update(x_samples, index_infos)
-							x_samples = im_spliter.gather()
-							x_samples = torch.clamp((x_samples+1.0)/2.0, min=0.0, max=1.0)
-
-			if rescale > 1:
-				x_samples = F.interpolate(
-							x_samples,
-							size=(int(init_image.size(-2)),
-									int(init_image.size(-1))),
-							mode='bicubic',
-							)
-				x_samples = x_samples.clamp(0, 1)
-			x_sample = 255. * rearrange(x_samples[0].cpu().numpy(), 'c h w -> h w c')
-			restored_img = x_sample.astype(np.uint8)
-			Image.fromarray(x_sample.astype(np.uint8)).save(f'output/out.png')
-
-			return restored_img, f'output/out.png'
-	except Exception as error:
-		print('Global exception', error)
-		return None, None
-
-
-title = "Exploiting Diffusion Prior for Real-World Image Super-Resolution"
-description = r"""<center><img src='https://user-images.githubusercontent.com/22350795/236680126-0b1cdd62-d6fc-4620-b998-75ed6c31bf6f.png' style='height:40px' alt='StableSR logo'></center>
-<b>Official Gradio demo</b> for <a href='https://github.com/IceClear/StableSR' target='_blank'><b>Exploiting Diffusion Prior for Real-World Image Super-Resolution</b></a>.<br>
-🔥 StableSR is a general image super-resolution algorithm for real-world and AIGC images.<br>
-"""
-article = r"""
-If StableSR is helpful, please help to ⭐ the <a href='https://github.com/IceClear/StableSR' target='_blank'>Github Repo</a>. Thanks!
-[![GitHub Stars](https://img.shields.io/github/stars/IceClear/StableSR?style=social)](https://github.com/IceClear/StableSR)
-
----
-
-📝 **Citation**
-
-If our work is useful for your research, please consider citing:
-```bibtex
-@inproceedings{wang2023exploiting,
-	author = {Wang, Jianyi and Yue, Zongsheng and Zhou, Shangchen and Chan, Kelvin CK and Loy, Chen Change},
-	title = {Exploiting Diffusion Prior for Real-World Image Super-Resolution},
-	booktitle = {arXiv preprint arXiv:2305.07015},
-	year = {2023}
-}
-```
-
-📋 **License**
-
-This project is licensed under <a rel="license" href="https://github.com/IceClear/StableSR/blob/main/LICENSE.txt">S-Lab License 1.0</a>.
-Redistribution and use for non-commercial purposes should follow this license.
-
-📧 **Contact**
-
-If you have any questions, please feel free to reach me out at <b>[email protected]</b>.
-
-<div>
-	🤗 Find Me:
-	<a href="https://twitter.com/Iceclearwjy"><img style="margin-top:0.5em; margin-bottom:0.5em" src="https://img.shields.io/twitter/follow/Iceclearwjy?label=%40Iceclearwjy&style=social" alt="Twitter Follow"></a>
-	<a href="https://github.com/IceClear"><img style="margin-top:0.5em; margin-bottom:2em" src="https://img.shields.io/github/followers/IceClear?style=social" alt="Github Follow"></a>
-</div>
-
-<center><img src='https://visitor-badge.laobi.icu/badge?page_id=IceClear/StableSR' alt='visitors'></center>
-"""
-
-demo = gr.Interface(
-	inference, [
-		gr.inputs.Image(type="filepath", label="Input"),
-		gr.inputs.Number(default=1, label="Rescaling_Factor (Large images require huge time)"),
-		gr.Slider(0, 1, value=0.5, step=0.01, label='CFW_Fidelity (0 for better quality, 1 for better identity)'),
-		gr.inputs.Number(default=42, label="Seeds"),
-		gr.Dropdown(
-			choices=["512", "768v"],
-			value="512",
-			label="Model",
-			),
-		gr.Slider(10, 1000, value=200, step=1, label='Sampling timesteps for DDPM'),
-		gr.Dropdown(
-			choices=["none", "adain", "wavelet"],
-			value="adain",
-			label="Color_Correction",
-			),
-	], [
-		gr.outputs.Image(type="numpy", label="Output"),
-		gr.outputs.File(label="Download the output")
-	],
-	title=title,
-	description=description,
-	article=article,
-	examples=[
-		['./01.png', 4, 0.5, 42, "512", 200, "adain"],
-		['./02.png', 4, 0.5, 42, "512", 200, "adain"],
-		['./03.png', 4, 0.5, 42, "512", 200, "adain"],
-		['./04.png', 4, 0.5, 42, "512", 200, "adain"],
-		['./05.png', 4, 0.5, 42, "512", 200, "adain"]
-		]
-	)
-
-demo.queue(concurrency_count=1)
-demo.launch(share=True)
+"""
+This file is used for deploying hugging face demo:
+https://huggingface.co/spaces/
+"""
+
+import sys
+sys.path.append('StableSR')
+import os
+import cv2
+import torch
+import torch.nn.functional as F
+import gradio as gr
+import torchvision
+from torchvision.transforms.functional import normalize
+from ldm.util import instantiate_from_config
+from torch import autocast
+import PIL
+import numpy as np
+from pytorch_lightning import seed_everything
+from contextlib import nullcontext
+from omegaconf import OmegaConf
+from PIL import Image
+import copy
+from scripts.wavelet_color_fix import wavelet_reconstruction, adaptive_instance_normalization
+from scripts.util_image import ImageSpliterTh
+from basicsr.utils.download_util import load_file_from_url
+from einops import rearrange, repeat
+
+# os.system("pip freeze")
+
+pretrain_model_url = {
+	'stablesr_512': 'https://huggingface.co/Iceclear/StableSR/resolve/main/stablesr_000117.ckpt',
+	'stablesr_768': 'https://huggingface.co/Iceclear/StableSR/resolve/main/stablesr_768v_000139.ckpt',
+	'CFW': 'https://huggingface.co/Iceclear/StableSR/resolve/main/vqgan_cfw_00011.ckpt',
+}
+# download weights
+if not os.path.exists('./stablesr_000117.ckpt'):
+	load_file_from_url(url=pretrain_model_url['stablesr_512'], model_dir='./', progress=True, file_name=None)
+if not os.path.exists('./stablesr_768v_000139.ckpt'):
+	load_file_from_url(url=pretrain_model_url['stablesr_768'], model_dir='./', progress=True, file_name=None)
+if not os.path.exists('./vqgan_cfw_00011.ckpt'):
+	load_file_from_url(url=pretrain_model_url['CFW'], model_dir='./', progress=True, file_name=None)
+
+# download images
+torch.hub.download_url_to_file(
+	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet128/Lincoln.png',
+	'01.png')
+torch.hub.download_url_to_file(
+	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet128/oldphoto6.png',
+	'02.png')
+torch.hub.download_url_to_file(
+	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet128/comic2.png',
+	'03.png')
+torch.hub.download_url_to_file(
+	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet128/OST_120.png',
+	'04.png')
+torch.hub.download_url_to_file(
+	'https://raw.githubusercontent.com/zsyOAOA/ResShift/master/testdata/RealSet65/comic3.png',
+	'05.png')
+
+def load_img(path):
+	image = Image.open(path).convert("RGB")
+	w, h = image.size
+	w, h = map(lambda x: x - x % 32, (w, h))  # resize to integer multiple of 32
+	image = image.resize((w, h), resample=PIL.Image.LANCZOS)
+	image = np.array(image).astype(np.float32) / 255.0
+	image = image[None].transpose(0, 3, 1, 2)
+	image = torch.from_numpy(image)
+	return 2.*image - 1.
+
+def space_timesteps(num_timesteps, section_counts):
+	"""
+	Create a list of timesteps to use from an original diffusion process,
+	given the number of timesteps we want to take from equally-sized portions
+	of the original process.
+	For example, if there's 300 timesteps and the section counts are [10,15,20]
+	then the first 100 timesteps are strided to be 10 timesteps, the second 100
+	are strided to be 15 timesteps, and the final 100 are strided to be 20.
+	If the stride is a string starting with "ddim", then the fixed striding
+	from the DDIM paper is used, and only one section is allowed.
+	:param num_timesteps: the number of diffusion steps in the original
+							process to divide up.
+	:param section_counts: either a list of numbers, or a string containing
+							 comma-separated numbers, indicating the step count
+							 per section. As a special case, use "ddimN" where N
+							 is a number of steps to use the striding from the
+							 DDIM paper.
+	:return: a set of diffusion steps from the original process to use.
+	"""
+	if isinstance(section_counts, str):
+		if section_counts.startswith("ddim"):
+			desired_count = int(section_counts[len("ddim"):])
+			for i in range(1, num_timesteps):
+				if len(range(0, num_timesteps, i)) == desired_count:
+					return set(range(0, num_timesteps, i))
+			raise ValueError(
+				f"cannot create exactly {num_timesteps} steps with an integer stride"
+			)
+		section_counts = [int(x) for x in section_counts.split(",")]   #[250,]
+	size_per = num_timesteps // len(section_counts)
+	extra = num_timesteps % len(section_counts)
+	start_idx = 0
+	all_steps = []
+	for i, section_count in enumerate(section_counts):
+		size = size_per + (1 if i < extra else 0)
+		if size < section_count:
+			raise ValueError(
+				f"cannot divide section of {size} steps into {section_count}"
+			)
+		if section_count <= 1:
+			frac_stride = 1
+		else:
+			frac_stride = (size - 1) / (section_count - 1)
+		cur_idx = 0.0
+		taken_steps = []
+		for _ in range(section_count):
+			taken_steps.append(start_idx + round(cur_idx))
+			cur_idx += frac_stride
+		all_steps += taken_steps
+		start_idx += size
+	return set(all_steps)
+
+def chunk(it, size):
+	it = iter(it)
+	return iter(lambda: tuple(islice(it, size)), ())
+
+def load_model_from_config(config, ckpt, verbose=False):
+	print(f"Loading model from {ckpt}")
+	pl_sd = torch.load(ckpt, map_location="cpu")
+	if "global_step" in pl_sd:
+		print(f"Global Step: {pl_sd['global_step']}")
+	sd = pl_sd["state_dict"]
+	model = instantiate_from_config(config.model)
+	m, u = model.load_state_dict(sd, strict=False)
+	if len(m) > 0 and verbose:
+		print("missing keys:")
+		print(m)
+	if len(u) > 0 and verbose:
+		print("unexpected keys:")
+		print(u)
+
+	model.cuda()
+	model.eval()
+	return model
+
+# device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
+device = torch.device("cuda")
+vqgan_config = OmegaConf.load("StableSR/configs/autoencoder/autoencoder_kl_64x64x4_resi.yaml")
+vq_model = load_model_from_config(vqgan_config, './vqgan_cfw_00011.ckpt')
+vq_model = vq_model.to(device)
+
+os.makedirs('output', exist_ok=True)
+
+def inference(image, upscale, dec_w, seed, model_type, ddpm_steps, colorfix_type):
+	"""Run a single prediction on the model"""
+	precision_scope = autocast
+	vq_model.decoder.fusion_w = dec_w
+	seed_everything(seed)
+
+	if model_type == '512':
+		config = OmegaConf.load("StableSR/configs/stableSRNew/v2-finetune_text_T_512.yaml")
+		model = load_model_from_config(config, "./stablesr_000117.ckpt")
+		min_size = 512
+	else:
+		config = OmegaConf.load("StableSR/configs/stableSRNew/v2-finetune_text_T_768v.yaml")
+		model = load_model_from_config(config, "./stablesr_768v_000139.ckpt")
+		min_size = 768
+
+	model = model.to(device)
+	model.configs = config
+	model.register_schedule(given_betas=None, beta_schedule="linear", timesteps=1000,
+							linear_start=0.00085, linear_end=0.0120, cosine_s=8e-3)
+	model.num_timesteps = 1000
+
+	sqrt_alphas_cumprod = copy.deepcopy(model.sqrt_alphas_cumprod)
+	sqrt_one_minus_alphas_cumprod = copy.deepcopy(model.sqrt_one_minus_alphas_cumprod)
+
+	use_timesteps = set(space_timesteps(1000, [ddpm_steps]))
+	last_alpha_cumprod = 1.0
+	new_betas = []
+	timestep_map = []
+	for i, alpha_cumprod in enumerate(model.alphas_cumprod):
+		if i in use_timesteps:
+			new_betas.append(1 - alpha_cumprod / last_alpha_cumprod)
+			last_alpha_cumprod = alpha_cumprod
+			timestep_map.append(i)
+	new_betas = [beta.data.cpu().numpy() for beta in new_betas]
+	model.register_schedule(given_betas=np.array(new_betas), timesteps=len(new_betas))
+	model.num_timesteps = 1000
+	model.ori_timesteps = list(use_timesteps)
+	model.ori_timesteps.sort()
+	model = model.to(device)
+
+	try: # global try
+			with torch.no_grad():
+				with precision_scope("cuda"):
+					with model.ema_scope():
+						init_image = load_img(image)
+						init_image = F.interpolate(
+									init_image,
+									size=(int(init_image.size(-2)*upscale),
+											int(init_image.size(-1)*upscale)),
+									mode='bicubic',
+									)
+
+						if init_image.size(-1) < min_size or init_image.size(-2) < min_size:
+							ori_size = init_image.size()
+							rescale = min_size * 1.0 / min(init_image.size(-2), init_image.size(-1))
+							new_h = max(int(ori_size[-2]*rescale), min_size)
+							new_w = max(int(ori_size[-1]*rescale), min_size)
+							init_template = F.interpolate(
+										init_image,
+										size=(new_h, new_w),
+										mode='bicubic',
+										)
+						else:
+							init_template = init_image
+							rescale = 1
+						init_template = init_template.clamp(-1, 1)
+						assert init_template.size(-1) >= min_size
+						assert init_template.size(-2) >= min_size
+
+						init_template = init_template.type(torch.float16).to(device)
+
+						if init_template.size(-1) <= 1280 or init_template.size(-2) <= 1280:
+							init_latent_generator, enc_fea_lq = vq_model.encode(init_template)
+							init_latent = model.get_first_stage_encoding(init_latent_generator)
+							text_init = ['']*init_template.size(0)
+							semantic_c = model.cond_stage_model(text_init)
+
+							noise = torch.randn_like(init_latent)
+
+							t = repeat(torch.tensor([999]), '1 -> b', b=init_image.size(0))
+							t = t.to(device).long()
+							x_T = model.q_sample_respace(x_start=init_latent, t=t, sqrt_alphas_cumprod=sqrt_alphas_cumprod, sqrt_one_minus_alphas_cumprod=sqrt_one_minus_alphas_cumprod, noise=noise)
+
+							if init_template.size(-1)<= min_size and init_template.size(-2) <= min_size:
+								samples, _ = model.sample(cond=semantic_c, struct_cond=init_latent, batch_size=init_template.size(0), timesteps=ddpm_steps, time_replace=ddpm_steps, x_T=x_T, return_intermediates=True)
+							else:
+								samples, _ = model.sample_canvas(cond=semantic_c, struct_cond=init_latent, batch_size=init_template.size(0), timesteps=ddpm_steps, time_replace=ddpm_steps, x_T=x_T, return_intermediates=True, tile_size=int(min_size/8), tile_overlap=min_size//16, batch_size_sample=init_template.size(0))
+							x_samples = vq_model.decode(samples * 1. / model.scale_factor, enc_fea_lq)
+							if colorfix_type == 'adain':
+								x_samples = adaptive_instance_normalization(x_samples, init_template)
+							elif colorfix_type == 'wavelet':
+								x_samples = wavelet_reconstruction(x_samples, init_template)
+							x_samples = torch.clamp((x_samples + 1.0) / 2.0, min=0.0, max=1.0)
+						else:
+							im_spliter = ImageSpliterTh(init_template, 1280, 1000, sf=1)
+							for im_lq_pch, index_infos in im_spliter:
+								init_latent = model.get_first_stage_encoding(model.encode_first_stage(im_lq_pch))  # move to latent space
+								text_init = ['']*init_latent.size(0)
+								semantic_c = model.cond_stage_model(text_init)
+								noise = torch.randn_like(init_latent)
+								# If you would like to start from the intermediate steps, you can add noise to LR to the specific steps.
+								t = repeat(torch.tensor([999]), '1 -> b', b=init_template.size(0))
+								t = t.to(device).long()
+								x_T = model.q_sample_respace(x_start=init_latent, t=t, sqrt_alphas_cumprod=sqrt_alphas_cumprod, sqrt_one_minus_alphas_cumprod=sqrt_one_minus_alphas_cumprod, noise=noise)
+								# x_T = noise
+								samples, _ = model.sample_canvas(cond=semantic_c, struct_cond=init_latent, batch_size=im_lq_pch.size(0), timesteps=ddpm_steps, time_replace=ddpm_steps, x_T=x_T, return_intermediates=True, tile_size=int(min_size/8), tile_overlap=min_size//16, batch_size_sample=im_lq_pch.size(0))
+								_, enc_fea_lq = vq_model.encode(im_lq_pch)
+								x_samples = vq_model.decode(samples * 1. / model.scale_factor, enc_fea_lq)
+								if colorfix_type == 'adain':
+									x_samples = adaptive_instance_normalization(x_samples, im_lq_pch)
+								elif colorfix_type == 'wavelet':
+									x_samples = wavelet_reconstruction(x_samples, im_lq_pch)
+								im_spliter.update(x_samples, index_infos)
+							x_samples = im_spliter.gather()
+							x_samples = torch.clamp((x_samples+1.0)/2.0, min=0.0, max=1.0)
+
+			if rescale > 1:
+				x_samples = F.interpolate(
+							x_samples,
+							size=(int(init_image.size(-2)),
+									int(init_image.size(-1))),
+							mode='bicubic',
+							)
+				x_samples = x_samples.clamp(0, 1)
+			x_sample = 255. * rearrange(x_samples[0].cpu().numpy(), 'c h w -> h w c')
+			restored_img = x_sample.astype(np.uint8)
+			Image.fromarray(x_sample.astype(np.uint8)).save(f'output/out.png')
+
+			return restored_img, f'output/out.png'
+	except Exception as error:
+		print('Global exception', error)
+		return None, None
+
+
+title = "Exploiting Diffusion Prior for Real-World Image Super-Resolution"
+description = r"""<center><img src='https://user-images.githubusercontent.com/22350795/236680126-0b1cdd62-d6fc-4620-b998-75ed6c31bf6f.png' style='height:40px' alt='StableSR logo'></center>
+<b>Official Gradio demo</b> for <a href='https://github.com/IceClear/StableSR' target='_blank'><b>Exploiting Diffusion Prior for Real-World Image Super-Resolution</b></a>.<br>
+🔥 StableSR is a general image super-resolution algorithm for real-world and AIGC images.<br>
+"""
+article = r"""
+If StableSR is helpful, please help to ⭐ the <a href='https://github.com/IceClear/StableSR' target='_blank'>Github Repo</a>. Thanks!
+[![GitHub Stars](https://img.shields.io/github/stars/IceClear/StableSR?style=social)](https://github.com/IceClear/StableSR)
+
+---
+
+📝 **Citation**
+
+If our work is useful for your research, please consider citing:
+```bibtex
+@inproceedings{wang2023exploiting,
+	author = {Wang, Jianyi and Yue, Zongsheng and Zhou, Shangchen and Chan, Kelvin CK and Loy, Chen Change},
+	title = {Exploiting Diffusion Prior for Real-World Image Super-Resolution},
+	booktitle = {arXiv preprint arXiv:2305.07015},
+	year = {2023}
+}
+```
+
+📋 **License**
+
+This project is licensed under <a rel="license" href="https://github.com/IceClear/StableSR/blob/main/LICENSE.txt">S-Lab License 1.0</a>.
+Redistribution and use for non-commercial purposes should follow this license.
+
+📧 **Contact**
+
+If you have any questions, please feel free to reach me out at <b>[email protected]</b>.
+
+<div>
+	🤗 Find Me:
+	<a href="https://twitter.com/Iceclearwjy"><img style="margin-top:0.5em; margin-bottom:0.5em" src="https://img.shields.io/twitter/follow/Iceclearwjy?label=%40Iceclearwjy&style=social" alt="Twitter Follow"></a>
+	<a href="https://github.com/IceClear"><img style="margin-top:0.5em; margin-bottom:2em" src="https://img.shields.io/github/followers/IceClear?style=social" alt="Github Follow"></a>
+</div>
+
+<center><img src='https://visitor-badge.laobi.icu/badge?page_id=IceClear/StableSR' alt='visitors'></center>
+"""
+
+demo = gr.Interface(
+	inference, [
+		gr.inputs.Image(type="filepath", label="Input"),
+		gr.inputs.Number(default=1, label="Rescaling_Factor (Large images require huge time)"),
+		gr.Slider(0, 1, value=0.5, step=0.01, label='CFW_Fidelity (0 for better quality, 1 for better identity)'),
+		gr.inputs.Number(default=42, label="Seeds"),
+		gr.Dropdown(
+			choices=["512", "768v"],
+			value="512",
+			label="Model",
+			),
+		gr.Slider(10, 1000, value=200, step=1, label='Sampling timesteps for DDPM'),
+		gr.Dropdown(
+			choices=["none", "adain", "wavelet"],
+			value="adain",
+			label="Color_Correction",
+			),
+	], [
+		gr.outputs.Image(type="numpy", label="Output"),
+		gr.outputs.File(label="Download the output")
+	],
+	title=title,
+	description=description,
+	article=article,
+	examples=[
+		['./01.png', 4, 0.5, 42, "512", 200, "adain"],
+		['./02.png', 4, 0.5, 42, "512", 200, "adain"],
+		['./03.png', 4, 0.5, 42, "512", 200, "adain"],
+		['./04.png', 4, 0.5, 42, "512", 200, "adain"],
+		['./05.png', 4, 0.5, 42, "512", 200, "adain"]
+		]
+	)
+
+demo.queue(concurrency_count=1)
+demo.launch(share=True)