php-gdHow to get pixel color
$file = '/var/www/examples/heroine.png';
$im = imagecreatefrompng($file);
$c = imagecolorat($im, 100, 100);
list($r, $g, $b) = [($c >> 16) & 0xFF, ($c >> 8) & 0xFF, $c & 0xFF];ctrl + c$filesample image to work with | imagecreatefrompngcreates GD image object from given PNG image |
imagecoloratreturns color at a given position as an integer | 100, 100we're getting color on |
$r, $g, $bvariables will contain decoded values for | |
Usage example
<?php
$file = '/var/www/examples/heroine.png';
$im = imagecreatefrompng($file);
$c = imagecolorat($im, 100, 100);
list($r, $g, $b) = [($c >> 16) & 0xFF, ($c >> 8) & 0xFF, $c & 0xFF];
echo $r . ' ' . $g . ' ' . $b;output
186 194 168