Update app.py

app.py

@@ -140,6 +140,9 @@ def main(share=True):
 
         depth_vis = (depth - depth.min()) / (depth.max() - depth.min() + 1e-5) * 255.0
         depth_vis = depth_vis.astype(np.uint8)
+        gray_vis_path = os.path.join(output_path, 'image_depth_gray.png')
+        cv2.imwrite(gray_vis_path, depth_vis)
+
         colored_depth = (cmap(depth_vis)[:, :, :3] * 255).astype(np.uint8)
 
         split_region = np.ones((image.shape[0], 50, 3), dtype=np.uint8) * 255
@@ -148,7 +151,7 @@ def main(share=True):
         vis_path = os.path.join(output_path, 'image_depth_vis.png')
         cv2.imwrite(vis_path, combined_result)
     
-        file_names = ["image_depth_vis.png", "raw_depth.npy", "pointcloud.ply"]
+        file_names = ["image_depth_vis.png", "image_depth_gray.png", "raw_depth.npy", "pointcloud.ply"]
             
         download_files = [
             (output_path / name).as_posix()