Re: Studying Lossy Image Compression Efficiency

2013-10-20 Thread danbrigade
I have a couple of fundamental issues with how you're calculating 3 of the 4 metrics (all but RGB-SSIM, which I didn't think too much about) First, am I correct in my reading of your methodology that for all metrics, you encode a color image (4:2:0) and use that encoded filesize? If so, then all

Re: Studying Lossy Image Compression Efficiency

2013-10-20 Thread Yoav Weiss
On Saturday, October 19, 2013 1:12:14 AM UTC+2, Ralph Giles wrote: > On 2013-10-18 1:57 AM, Yoav Weiss wrote: > > > > > Would you consider a large sample of lossless Web images (real-life images > > served as PNG24, even though it'd be wiser to serve them as JPEGs) to be > > unbiased enough to