Update app.py

app.py

@@ -92,7 +92,7 @@ def create_video(frames, fps, type):
     clip = ImageSequenceClip(frames, fps=fps)
     
     maskclip = ImageSequenceClip(frames, fps=fps, ismask=True)
-    maskclip.to_mask(maskclip, canal=2)
+    maskclip.to_mask(canal=2)
     clip.set_mask(maskclip)
     
     clip.write_videofile(type + "_result.webm", fps=fps, codec='libvpx9', audio=False)