support for more color spaces and bit depths as in Adobe DNG

[GoogleCodeExporter]

For photography-professionals that store pictures lossless, there are currently 
two file-formats to choose from: TIFF and Adobe DNG; both support many color 
spaces and various bit depths but have ancient compression techniques. Adobe 
DNG, while being lossless, deletes parts such as included thumbnails and 
changes other parts so that only Adobe products can decode DNG correctly. So 
the wish emerges to have support for more color spaces and bit depths to make 
WEBP usable as alternate to Adobe DNG.
It would also be interesting for compression performance, to support the camera 
raw image data (mosaic, 1x8 bit, 1x10 bit, 1x12 bit, 1x14 bit or 1x16 bit) as 
those need less space as their demosaiced RGB counterparts.

Original issue reported on code.google.com by squeezec...@gmx.de on 11 Aug 2013 at 4:06

[GoogleCodeExporter]

WebP as it currently stands is meant as a final (publishable) format, not an 
intermediate format like DNG/TIFF here or ProRes on the video side.
Some of this may therefore be beyond its scope.

Original comment by jz...@google.com on 14 Aug 2013 at 1:09

• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

Original comment by pascal.m...@gmail.com on 15 Aug 2014 at 7:33

• Changed state: WontFix