best I can suggest is to look at http://www.imagemagick.org/script/command-line-options.php#colorspace
other than that you need answers from the IM folks as I am not an expert on these matters. First from the above link you will see that YUV is not the same as YCbCr. Second I suspect you get Y, Cb, Cr and not Y, Cb, Y, Cr (3 channels and not 4) from IM Or Y, U, V again as 3 channels from IIM You can try convert yuvimage -separate yuvimage_%d.png and see how many images you get (yuvimage_0.png, yuvimage_1.png ....) I suspect 3, the first is Y, the second is U and the third is V or the first is Y, the second is Cb and the third is Cr depending upon your input format. _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
