- class HighContrastFilter¶
Color filter that provides transformations to improve contrast for users with low vision.
Applies the following transformations in this order. Each of these can be configured using
Conversion to grayscale
Color inversion (either in RGB or HSL space)
Increasing the resulting contrast.
HighContrastFilter.Make()will return nullptr if the config is not valid, e.g. if you try to call it with a contrast outside the range of -1.0 to 1.0.