color channels

app.py

@@ -131,18 +131,13 @@ def mask_to_min_max(mask: np.ndarray) -> Tuple[int, int, int, int]:
     return x.min(), y.min(), x.max(), y.max()
 
 def extract_and_paste_insect(original_image: np.ndarray, detection: DetectionResult, background: np.ndarray) -> None:
-    mask = detection.mask
+    mask = detection.mask.astype(bool)
     xmin, ymin, xmax, ymax = mask_to_min_max(mask)
     insect_crop = original_image[ymin:ymax, xmin:xmax]
     mask_crop = mask[ymin:ymax, xmin:xmax]
 
-    # Ensure the insect retains its original color by directly copying the pixel values
-    insect = np.zeros_like(insect_crop)
-    for c in range(3):
-        insect[:, :, c] = insect_crop[:, :, c] * (mask_crop / 255)
-
-    for c in range(3):
-        background[ymin:ymax, xmin:xmax, c] = background[ymin:ymax, xmin:xmax, c] * (1 - mask_crop / 255) + insect[:, :, c]
+    for c in range(3):  # Loop over color channels
+        background[ymin:ymax, xmin:xmax, c][mask_crop] = insect_crop[:, :, c][mask_crop]
 
 def create_yellow_background_with_insects(image: np.ndarray, detections: List[DetectionResult]) -> np.ndarray:
     yellow_background = np.full((image.shape[0], image.shape[1], 3), (0, 255, 255), dtype=np.uint8)  # BGR for yellow