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Private TIFF Tag ProfileToneCurve

TIFF Tag ProfileToneCurve

IFDImage
Code50940 (hex 0xC6FC)
NameProfileToneCurve
TypeFLOAT
CountSamples * 2
DefaultNone

Description

Used in IFD 0 or Camera Profile IFD of DNG files.

This tag contains a default tone curve that can be applied while processing the image as a starting point for user adjustments. The curve is specified as a list of 32-bit IEEE floating-point value pairs in linear gamma. Each sample has an input value in the range of 0.0 to 1.0, and an output value in the range of 0.0 to 1.0. The first sample is required to be (0.0, 0.0), and the last sample is required to be (1.0, 1.0). Interpolate the curve using a cubic spline.

See also

DNG Specification