TIFF Tag AsShotICCProfile
|Code||50831 (hex 0xC68F)|
Used in IFD 0 of DNG files.
This tag contains an ICC profile that, in conjunction with the AsShotPreProfileMatrix tag, provides the camera manufacturer with a way to specify a default color rendering from camera color space coordinates (linear reference values) into the ICC profile connection space.
The ICC profile connection space is an output referred colorimetric space, whereas the other color calibration tags in DNG specify a conversion into a scene referred colorimetric space. This means that the rendering in this profile should include any desired tone and gamut mapping needed to convert between scene referred values and output referred values.
DNG readers that have their own tone and gamut mapping controls will probably ignore this tag pair.