Module zune_imageprocs::gamma

Apply gamma correction onto an image

This filter applies gamma correction on image pixels.

Algorithm details

The formula used is

max_value = maximum byte value
max_value_inv = 1.0/max_value
gamma_value =  passed gamma value
pixel = max_value_inv * pixel.powf(gamma_value);

Implementation details

• For u8 and u16 , we use lookup tables to improve speed
• For f32 naive execution is used

Structs

• Gamma
  Gamma adjust an image

Functions

• gamma