Convert val to its gamma decoded value. This is the inverse operation of gstvideo.global.videoColorTransferEncode.
For a non-linear value L' in the range [0..1], conversion to the linear L is in general performed with a power function like:
L = L' ^ gamma
Depending on func, different formulas might be applied. Some formulas encode a linear segment in the lower range.
a #GstVideoTransferFunction
a value
the gamma decoded value of val
Convert val to its gamma decoded value. This is the inverse operation of gstvideo.global.videoColorTransferEncode.
For a non-linear value L' in the range [0..1], conversion to the linear L is in general performed with a power function like:
Depending on func, different formulas might be applied. Some formulas encode a linear segment in the lower range.