alt Hacker NewsVery clearly shows much more sensitive our eyes are to luminance rather than hue or saturation, which was the main observation that allowed for the high compression rate of JPEG
Very clearly shows much more sensitive our eyes are to luminance rather than hue or saturation, which was the main observation that allowed for the high compression rate of JPEG
Are you speaking of chroma subsampling, or is there a property of the discrete cosine transform that makes it more effective on luma rather than chroma?