Yeah, both JPEG-XR and WebP support an alpha channel. I haven't used that capability as part of my experiments, but I imagine that it can fit well, maybe with some adjustments to the diff function. Otherwise, in terms of quality, both JPEG-XR and WebP have a decent alpha channel and usually compress photographic images with an alpha channel way better than PNG. On Wed, Dec 16, 2015 at 3:54 PM, Paul Deschamps <pdescham49@gmail.com> wrote: > My Apologies, > > I see that JPEG-XR supports an alpha channel. Have you done any testing > with your approach including the alpha channel? I am mainly curious if the > quality is comparable to PNG. > > > On Wed, Dec 16, 2015 at 9:49 AM, Yoav Weiss <yoav@yoav.ws> wrote: > >> >> >> On Wed, Dec 16, 2015 at 3:45 PM, Paul Deschamps <pdescham49@gmail.com> >> wrote: >> >>> Very interesting Yoav, Nicely done! I am laughing over here with a work >>> colleague as you've written down a very similar approach to what we've >>> discussed here at length. >>> >>> I am unfamiliar with JPG-XR how well does it handle alpha blending? and >>> how would that apply to your approach? >>> >> >> I'm not sure I understand your question. Can you elaborate? >> >> >
Received on Wednesday, 16 December 2015 14:59:57 UTC