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Screen blending

The Screen blending belongs to the lightening blendings. The result image will have a lighter tonality than the source images.

Implementation

The Screen blending calculates the following simple formula for each pixel of each color channel:

CR = 1-(1-CB)*(1-CT)

where CR is the intensity of the color channel in the blending result within 0..1 range.

CB is the intensity of the color channel in the bottom image within 0..1 range.

CT is the intensity of the color channel in the top image within 0..1 range.

Parameters

No parameter belongs to this effect.

Use

The Screen blending is used to create lighter scenes after blending.

See also

 
screen_blending.txt · Last modified: 2009/01/01 22:01 (external edit)
 
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