1function writeYUV420file(filename, Y, U, V)
2% writeYUV420file(filename, Y, U, V)
3
4fid = fopen(filename,'wb');
5if fid==-1
6    error(['Cannot open file ' filename]);
7end
8
9numFrames=size(Y,3);
10
11for k=1:numFrames
12   % Write luminance
13   fwrite(fid,uint8(Y(:,:,k).'), 'uchar');
14
15   % Write U channel
16   fwrite(fid,uint8(U(:,:,k).'), 'uchar');
17
18   % Write V channel
19   fwrite(fid,uint8(V(:,:,k).'), 'uchar');
20end
21
22fclose(fid);
23