Re: ISO 21496‐1:20XX Gain Maps

Thanks for that data, although it mainly covers JPEG-compressed images.

I would be interested to see a comparison between, for example:

 1. 8 bit PNG compressed SDR image plus 10 bit PNG compressed HDR image
 2. 8 bit PNG compressed baseline SDR image containing un-resampled
    16-bit gain map

both in terms of file sizes and also in terms of per-pixel error 
visualization in the reconstructed alternate image.

On 2023-11-15 14:03, Leo Barnes wrote:
>> The claim of storage efficiency has not been backed up by any 
>> measurements that I have seen.
>
> It's in the white-paper 
> <https://helpx.adobe.com/camera-raw/using/gain-map.html> published by 
> Adobe:

-- 
Chris Lilley
@svgeesus
Technical Director @ W3C
W3C Strategy Team, Core Web Design
W3C Architecture & Technology Team, Core Web & Media