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(PHP 4 >= 4.0.6, PHP 5)

imagecolorclosestalpha -- Get the index of the closest color to the specified color + alpha

Description

int imagecolorclosestalpha ( resource image, int red, int green, int blue, int alpha )

Returns the index of the color in the palette of the image which is "closest" to the specified RGB value and alpha level.

Related Function(s)

imagecolorexactalpha()