Update app.py

app.py

@@ -146,7 +146,7 @@ def make_video(video_path, outdir='./vis_video_depth', encoder='vits'):
             depth_color[mask>0] = (0,0,0)
 
             rgba_frame = cv2.cvtColor(raw_frame, cv2.COLOR_RGB2RGBA)
-            rgba_frame = cv2.mixChannels([depth_color], [rgba_frame], [0,3])
+            cv2.mixChannels([depth_color], [rgba_frame], [0,3])
             blur_frame = rgba_frame.copy()
             i = 240
             l = 0