Update app.py

app.py

@@ -69,6 +69,13 @@ def stitch_rgbd_videos(
                 # Generate a color depth image using the inferno colormap.
                 cmap = matplotlib.colormaps.get_cmap("inferno")
                 depth_vis = (cmap(depth_norm / 255.0)[..., :3] * 255).astype(np.uint8)
+            
+            # Ensure depth_vis is valid and contiguous
+            if depth_vis is None or depth_vis.size == 0:
+                raise ValueError("depth_vis is empty or not properly computed.")
+            else:
+                depth_vis = np.ascontiguousarray(depth_vis)
+            
             # Apply Gaussian blur if requested.
             if blur > 0:
                 kernel_size = int(blur * 20) * 2 + 1  # Ensures an odd kernel size.