fix seg app

app.py

@@ -3365,9 +3365,9 @@ with demo:
                     # combine the masks, also draw the bounding boxes
                     combined_masks = []
                     for i_image in range(len(mask)):
-                        noisy_mask = np.array(mask[i_image].convert("RGB"))
+                        noisy_mask = np.array(mask[i_image])
                         bbox = bboxs[i_image]
-                        clean_mask = np.array(filtered_masks[i_image].convert("RGB"))
+                        clean_mask = np.array(filtered_masks[i_image])
                         combined_mask = noisy_mask * 0.4 + clean_mask
                         combined_mask = np.clip(combined_mask, 0, 255).astype(np.uint8)
                         if overlay_image: