beatmup.filters.ColorMatrix¶

class beatmup.filters.ColorMatrix¶

Color matrix filter: applies an affine mapping Ax + B at each pixel of a given image in RGBA space

Methods

`__init__`(self)
`apply_contrast`(self, factor)	Applies a contrast adjustment by a given factor on top of the current transformation
`set_brightness`(self, brightness)	Sets a brightness adjustment by a given factor (non-cumulative with respect to the current transformation)
`set_coefficients`(self, out_channel, add, rgba)	Sets color matrix coefficients for a specific output color channel
`set_color_inversion`(self, preserved_hue, ...)	Resets the current transformation to a fancy color inversion mode with a fixed hue point
`set_hsv_correction`(self, hue_shift_degrees, ...)	Resets the current transformation to a matrix performing standard HSV correction

Attributes

`input`	Input bitmap
`output`	Output bitmap