GD and Image Functions
PHP Manual

imagecolormatch

Makes the colors of the palette version of an image more closely match the true color version

Description

bool imagecolormatch(GdImage $image1, GdImage $image2)

Makes the colors of the palette version of an image more closely match the true color version.

Parameters

image1

A truecolor image object.

image2

A palette image object pointing to an image that has the same size as image1.

Return Values

Returns true on success or false on failure.

Changelog

Version Description
8.0.0 image1 and image2 expect GdImage instances now; previously, resources were expected.

Examples

Example #1 imagecolormatch example

<?php
// Setup the true color and palette images
$im1 = imagecreatefrompng('./gdlogo.png');
$im2 = imagecreate(imagesx($im1), imagesy($im1));

// Add some colors to $im2
$colors   = Array();
$colors[] = imagecolorallocate($im2, 255, 36, 74);
$colors[] = imagecolorallocate($im2, 40, 0, 240);
$colors[] = imagecolorallocate($im2, 82, 100, 255);
$colors[] = imagecolorallocate($im2, 84, 63, 44);

// Match these colors with the true color image
imagecolormatch($im1, $im2);

// Free from memory
imagedestroy($im1);
imagedestroy($im2);
?>

See Also

  • imagecreatetruecolor