________________________________________ From: [email protected] [[email protected]] on behalf of wm4 [[email protected]] Sent: Wednesday, May 27, 2015 6:30 PM To: [email protected] Subject: Re: [Libav-user] Colour space conversion
On Wed, 27 May 2015 09:42:11 -0300 Rafael Lúcio <[email protected]> wrote: > If you convert any RGB format to YUV420 you will lose data. If you want to > just change the format to YCbCr without losing data.. you can try YUV444 > format... its 3 bytes per pixel, just like RGB, so you will not lose any > data. > That's quite misleading. yuv420 will of course lose data, but it's also the standard for video compression (which typically _also_ loses data additional to the yuv conversion). And converting between yuv444 and RGB is also a lossy operation (at least if both use the same bit depth). What I mean by colours change is for example ...that orange becomes blue, blue becomes green, gray remains gray. Really confused over the solution , Do I used yuv444 instead to solve this ? _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
