PHP imagecolorset - Set the color for the specified palette index

PHP 图像处理 PHP Image Processing

imagecolorset — Set the color for the specified palette index.

Syntax

void imagecolorset ( resource $image , int $index , int $red , int $green , int $blue )

This function sets the specified index in the palette to the specified color. It is useful for creating flood-fill-like effects on palette-based images, avoiding the overhead of actually performing the fill.

imagecolorat()Get the color index value of a pixel.

PHP 图像处理 PHP Image Processing

Other Extensions

PHP imagecolorresolvealpha - Get the index value of the specified color plus transparency, or the closest possible alternative value

PHP imagecolorsforindex - Get the color at a given index

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PHP imagecolorset - Set the color for the specified palette index

Syntax

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