Programming Web Graphics with Perl and GNU Softwar

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Name

colorClosest( ) — find the closest matching color

Synopsis

GD::Image::colorClosest(red
                        ,

                        green
                        ,

                        blue)

This method returns the color table index of the color that best matches the color specified by the given red, green, and blue values, or a -1 if the table has no colors allocated.

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