PHP GD image convolution
This example shows how to convolution an image in php gd.
This example shows how to convolution an image in php gd.<?php
$image = imagecreatefromjpeg('images.jpg');
$emboss = array(array(2, 0, 0), array(0, -1, 0), array(0, 0, -1));
imageconvolution($image, $emboss, 1, 127);
header('Content-Type: image/jpeg');
imagejpeg($image, null, 9);
?>
After running the program you will get the following output
