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True if the change was performed, False otherwise.
Name of the Image control to be used.
Value included between -100 and +100. This value will be added to the current lightness of each pixel to get a new lightness.
Image where the transformed image will be drawn. The image can correspond to: the name of an Image control. the name of a variable of type Image. This type of variable is not available. If this parameter is not specified, the transformation will be performed in <Image control>
Drawing in PHP
Drawing in Browser code
Last update: 07/05/2022
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