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TIFF Tag GainControl

IFDExif
Code41991 (hex 0xA407)
NameGainControl
TypeSHORT
Count1
DefaultNone

Description

Indicates the degree of overall image gain adjustment.

The specification defines these values:

0 = None
1 = Low gain up
2 = High gain up
3 = Low gain down
4 = High gain down