improve glasses alignment

app.py

@@ -43,8 +43,16 @@ def process_frame(frame):
             x, y, w, h = face[:4].astype(int)
             face_landmarks = face[4:14].reshape(5, 2).astype(int)  # Facial landmarks
 
-            # Get the nose position (assuming landmark index 2 is the nose)
+            # Get the nose position
             nose_x, nose_y = face_landmarks[2].astype(int)
+            # left eye postion
+            left_eye_x, left_eye_y = face_landmarks[0].astype(int)
+            # right eye postion
+            right_eye_x, right_eye_y = face_landmarks[1].astype(int)
+
+            # Calculate the midpoint between the eyes
+            eye_center_x = (left_eye_x + right_eye_x) // 2
+            eye_center_y = (left_eye_y + right_eye_y) // 2
 
             # Resize the overlay
             overlay_resize = cv2.resize(overlay, (int(w * 1.15), int(h * 0.8)))
@@ -52,9 +60,9 @@ def process_frame(frame):
             # Ensure the frame is a NumPy array and writable
             frame = np.array(frame)
 
-            # Calculate the position to center the glasses on the nose
-            overlay_x = nose_x - overlay_resize.shape[1] // 2
-            overlay_y = y  # Adjust this if needed for better vertical alignment
+            # Calculate the position to center the glasses on the eyes
+            overlay_x = eye_center_x - overlay_resize.shape[1] // 2
+            overlay_y = eye_center_y - overlay_resize.shape[0] // 3  # Adjust vertical position
 
             # Overlay the glasses
             try: