Optical density of each pixel value. 0x0123 ∙ 291
IG_ISIS_TAG_GRAYRESPONSECURVE controls the optical density of each possible pixel value in a grayscale image.
Type:
IG_ISIS_TAG_TYPE_SHORT
Drivers:
None
Values:
The 0th value of IG_ISIS_TAG_GRAYRESPONSECURVE corresponds to the optical density of a pixel having a value of zero. The tag contains 2BitsPerSample values to define the density of each possible pixel value in the image.
Remarks:
This tag is not used by ISIS and is not normally used by TIFF, but is defined by the TIFF specification. It is currently ignored by many TIFF readers.
See Also
IG_ISIS_TAG_PHOTOMETRICINTERPRETATION