I'm experimenting with using video codecs for compressing still images to reduce the size of my personal database. I'm usoing 24 bit PNGs as the source files and everything is fine using rgb video codecs but I'm having trouble getting yuv codecs to work. My plan is to use the YCgCo colorspace to get lossless conversion of rgb->yuv->rgb; but my images are coming out faded.
The commands I ran: ffmpeg -i Ash.png -c:v libvpx-vp9 -lossless 1 -colorspace ycgco -color_range pc -pix_fmt yuv444p ash.ivf ffmpeg -i ash.ivf ash.ivf.png I've also tried it with x264 (same result): ffmpeg -i Ash.png -c:v libx264 -crf 0 -colorspace ycgco -color_range pc -pix_fmt yuv444p Uploaded files: Ash.png http://0x0.st/sWsV.png ash.ivf http://0x0.st/sWsy.ivf ash.ivf.png http://0x0.st/sWst.png _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
