Jon Sneyers

It would be convenient to have something like cmsCreateRGBProfileFromVideoSignalType. I guess there are two ways in which the profiles embedded in HDR images are used: one is describing how to...

Why are only global tone mapping algorithms considered? Local tone mapping methods can often provide better results, and don't necessarily have to infeasible in terms of computational resources. At least...

A "hinting channel" would be quite similar to an inverse gain map (as what is being done in ISO/CD 21496-1), i.e. you encode an HDR image (at the max nits...

Yes, it currently only works on 8-bit sRGB images, because the conversion to Lab space is hardcoded for that. Using lcms it could be done to take arbitrary bit depth...

What is "OK" depends very much on the use case and circumstances. But in general: like Butteraugli, ssimulacra is a metric where 0 means lossless and higher values indicate more...

Interesting, I sent them an email with some information on ssimulacra2. Obviously it is only an image metric, not a video metric, but still it could be interesting to investigate...

Probably not, looks like some metadata png chunks that it couldn't parse, but that shouldn't affect the score.

For a metric, you can compute an integral. For an event, something discrete is needed. One example is a Javascript-based image carrousel/gallery that needs to know when the next image...

Rebased since there were merge conflicts, didn't change anything but needs re-approval.

Fixed tests, I think.