[Libav-user] How can i extract Y plane from any frame in video

[Amir Rouhi-Rmit]

I know that i can extract images of a video by ffmpeg as can be seen in
below command:
ffmpeg -i input.avi -r 1 -s WxH -f image2 Img-%03d.jpeg
But what i want is a separated Y plane and cb and cr plane. can i i achieve
this by ffmpeg? if yes pleas let me now how and if no do you suggest any
idea?
Tnx
Amir
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