Файл: gapps/vendor/intervention/image/src/Intervention/Image/Gd/Commands/SharpenCommand.php
Строк: 37
<?php
namespace InterventionImageGdCommands;
class SharpenCommand extends InterventionImageCommandsAbstractCommand
{
/**
* Sharpen image
*
* @param InterventionImageImage $image
* @return boolean
*/
public function execute($image)
{
$amount = $this->argument(0)->between(0, 100)->value(10);
// build matrix
$min = $amount >= 10 ? $amount * -0.01 : 0;
$max = $amount * -0.025;
$abs = ((4 * $min + 4 * $max) * -1) + 1;
$div = 1;
$matrix = array(
array($min, $max, $min),
array($max, $abs, $max),
array($min, $max, $min)
);
// apply the matrix
return imageconvolution($image->getCore(), $matrix, $div, 0);
}
}