There is no way to calculate CCT/Tint WB without color profile data. Also, there is no way to show raw image right without color profile.
So, to support new camera(s) we need
a) Sample file(s) to get basic file reading support in (our) LibRaw library. CHDK-files should be easy to add, but I need at least one sample with known colors (e.g. sky) and with deep shadows (to approximate black level data) for each camera. Sample files are necessarybut notalways sufficient, because for some formats compession scheme is still unknown for us.
b) Color target shot(s) (Colorchecker SG is preferred), made under even light with good spectrum (ImagingResources files are good example: http://www.imaging-resource.com/PRODS/canon-7d-mark-ii/E7D2hVFAI00400.CR... ). Standard 24-patch color checker is not enough to build good color profile. The target shot should be right exposed, slightly defocused and without hotspots/glare.
Also, it is better to have two shots for color profiling 1) flat gray surface and 2) color target put on this surface. It will help us to correct for light uneveness.
There is no way to calculate
There is no way to calculate CCT/Tint WB without color profile data. Also, there is no way to show raw image right without color profile.
So, to support new camera(s) we need
a) Sample file(s) to get basic file reading support in (our) LibRaw library. CHDK-files should be easy to add, but I need at least one sample with known colors (e.g. sky) and with deep shadows (to approximate black level data) for each camera. Sample files are necessary but not always sufficient, because for some formats compession scheme is still unknown for us.
b) Color target shot(s) (Colorchecker SG is preferred), made under even light with good spectrum (ImagingResources files are good example: http://www.imaging-resource.com/PRODS/canon-7d-mark-ii/E7D2hVFAI00400.CR... ). Standard 24-patch color checker is not enough to build good color profile. The target shot should be right exposed, slightly defocused and without hotspots/glare.
Also, it is better to have two shots for color profiling 1) flat gray surface and 2) color target put on this surface. It will help us to correct for light uneveness.
--
Alex Tutubalin/FastRawViewer team