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imagecolorresolve

PHP function Edit on GitHub ✎

(PHP 4, PHP 5, PHP 7, PHP 8)

Get the index of the specified color or its closest possible alternative

Description

imagecolorresolve(GdImage $image, int $red, int $green, int $blue): int

This function is guaranteed to return a color index for a requested color, either the exact color or the closest possible alternative.

Colors

Parameters

red: Red
green: Green
blue: Blue

Return Values

Returns a color index.

Changelog

Version	Description

Examples

Using imagecoloresolve() to get colors from an image

php

<?php
// Load an image
$im = imagecreatefromgif('phplogo.gif');

// Get closest colors from the image
$colors = array();
$colors[] = imagecolorresolve($im, 255, 255, 255);
$colors[] = imagecolorresolve($im, 0, 0, 200);

// Output
print_r($colors);
?>

The above example will output something similar to:

output

Array
(
    [0] => 89
    [1] => 85
)