Module colour_models

This module deals with different colour models and conversions between colour models.

Structs

CIELAB

CIE LAB (also known as CIE Lab* or Lab) a colour model that represents colour as lightness, and a* and b* as the green-red and blue-yellow colour differences respectively. It is designed to be representative of human perception of colour

CIELUV

Similar to CIELAB but has a different representation of colour.

CIEXYZ

CIE XYZ standard - assuming a D50 reference white

Generic1

A single channel image with no colour model specified

Generic2

A two channel image with no colour model specified

Generic3

A three channel image with no colour model specified

Generic4

A four channel image with no colour model specified

Generic5

A five channel image with no colour model specified

Gray

Grayscale image

HSI

Hue Saturation Intensity image

HSL

Hue Saturation Lightness image

HSV

Hue Saturation Value image

RGB

RGB colour as intended by sRGB and standardised in IEC 61966-2-1:1999

RGBA

RGB colour similar to RGB type but with an additional channel for alpha transparency

YCrCb

YCrCb represents an image as luma, red-difference chroma and blue-difference chroma.

Traits

ColourModel

ColourModel trait, this trait reports base parameters for different colour models

Functions

hsv_to_rgb

Converts a HSV pixel to a RGB pixel

rgb_to_hsv

Converts an RGB pixel to a HSV pixel