Available color spaces / models / profiles

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Available color spaces / models / profiles

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The list of available color spaces in GrossGrade:

 

Name

Type

Description

RGB

Component / Non-absolute

Red, Green, Blue color channels.

 

This is the most common color model in which images are most often presented initially. This is an additive model represented by three color channels: red, green, blue.

 

In fact, RGB is a whole family of color spaces that represents specific implementations, such as sRGB, AdobeRGB, etc., or specific profiles of display devices.

CIE XYZ

Component / Absolute

CIE 1931 XYZ color space

 

CIE XYZ is a master model of almost all other color models used in technical fields.

This model is hardware-independent, i.e. it is not tied to a specific display device (for example, a monitor).

YUV/YCrCb

Perceptual / Non-absolute

Luma (Y), U-color component, V-color component

 

The model is widely used in video / television. The brightness component contains a black and white image, and the remaining components contain information to restore the original color.

HSLxy

Perceptual / Non-absolute

Hue, Saturation, Lightness (rectangular)

 

It is a transformation of the RGB model so that one of the components is a brightness component. This kind of model has two points of singularity of color space.

HСLxy

Perceptual / Non-absolute

Hue, Chroma, Lightness (rectangular)

 

It is a transformation of the RGB model so that one of the components is a brightness component. This kind of model has no singularity points of the color space.

CIE Lab

Perceptual / Absolute

Lightness, a-color component, b-color component

 

This model is hardware-independent, i.e. it is not tied to a specific display device (for example, a monitor).

CIE standard. By default, the conversion uses the following parameters: observer = 2, illuminant = D65, RGB-gamma = 0.

UP Lab (trial)

Perceptual / Absolute

Lightness, a-color component, b-color component

 

This model is hardware-independent, i.e. it is not tied to a specific display device (for example, a monitor).

UP Lab (Uniform Perceptual Lab) is created by Bruce Lindbloom based on Mansell data and is evenly distributed in hue and chroma for color perception.

This color model is marked as a Trial, because it has some problems in its internal device. It is recommended to use with caution.

 

 

Note: in the current version of the application, the subtle parameters of color models are not available. In future versions, it will be possible to specify specific profiles of color reproduction devices, set the values of the light source, the observer, the gamut mapping type, etc.