ImageGear for C and C++ on Linux v20.0 - Updated
API Reference Guide > Core Component API Reference > Core Component Enumerations Reference > enumIGContrastModes

This enumeration specifies contrast adjustment modes.


IG_CONTRAST_PALETTE Alter image palette.
IG_CONTRAST_PIXEL Alter image pixels.
IG_CONTRAST_AUTO If the image is indexed, alter palette, otherwise alter pixels.
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