search for: chrominance

On Fri, 4 Jun 2004, Makc wrote: > Here's what you can find in the net on YUV scheme: Hmm? What prompted this? > The statement I care to make here, is simply that there ain't neither > such thing as "luminance", which details "the eye is more sensitive to", "ain't neither"? Double negative, so I take your statement to mean that there *is* such

...e with the fact that a few differences (lets say a small lumi difference) might give a very bad psnr. That is why a few years ago, I made a small tool to bypass those problems. The tool is a difference comparator for color images. This tool allows you to use several test criterions: *luminance *chrominance *local emerging of pixels *correllation with neighbours *contour This tool is limited on the size of input pictures, so you have to crop images first. I think that this tool might be usefull to you. It is available on gabriel.mp3-tech.org. I do not have time anymore to work on it (source code is...

Hi, I guess this is a good time to start putting together a wish list for a video codec. I see that for audio the compression is around 10X for reasonable quality. I am sure this will start its own thread of conversation. For video you can do 40X fairly easily and the big task is to go to 80X or 100X with reasonable picture quality, say, a peak luma SNR of more than 30 dB. Uncompressed