/home/kueuepay/www/vendor/intervention/image/src/Intervention/Image/Gd/Commands/MaskCommand.php
<?php

namespace Intervention\Image\Gd\Commands;

use Intervention\Image\Commands\AbstractCommand;

class MaskCommand extends AbstractCommand
{
    /**
     * Applies an alpha mask to an image
     *
     * @param  \Intervention\Image\Image $image
     * @return boolean
     */
    public function execute($image)
    {
        $mask_source = $this->argument(0)->value();
        $mask_w_alpha = $this->argument(1)->type('bool')->value(false);

        $image_size = $image->getSize();

        // create empty canvas
        $canvas = $image->getDriver()->newImage($image_size->width, $image_size->height, [0,0,0,0]);

        // build mask image from source
        $mask = $image->getDriver()->init($mask_source);
        $mask_size = $mask->getSize();

        // resize mask to size of current image (if necessary)
        if ($mask_size != $image_size) {
            $mask->resize($image_size->width, $image_size->height);
        }

        imagealphablending($canvas->getCore(), false);

        if ( ! $mask_w_alpha) {
            // mask from greyscale image
            imagefilter($mask->getCore(), IMG_FILTER_GRAYSCALE);
        }

        // redraw old image pixel by pixel considering alpha map
        for ($x=0; $x < $image_size->width; $x++) {
            for ($y=0; $y < $image_size->height; $y++) {

                $color = $image->pickColor($x, $y, 'array');
                $alpha = $mask->pickColor($x, $y, 'array');

                if ($mask_w_alpha) {
                    $alpha = $alpha[3]; // use alpha channel as mask
                } else {

                    if ($alpha[3] == 0) { // transparent as black
                        $alpha = 0;
                    } else {

                        // $alpha = floatval(round((($alpha[0] + $alpha[1] + $alpha[3]) / 3) / 255, 2));

                        // image is greyscale, so channel doesn't matter (use red channel)
                        $alpha = floatval(round($alpha[0] / 255, 2));
                    }

                }

                // preserve alpha of original image...
                if ($color[3] < $alpha) {
                    $alpha = $color[3];
                }

                // replace alpha value
                $color[3] = $alpha;

                // redraw pixel
                $canvas->pixel($color, $x, $y);
            }
        }


        // replace current image with masked instance
        $image->setCore($canvas->getCore());

        return true;
    }
}
Path: home/kueuepay/www/vendor/intervention/image/src/Intervention/Image/Gd/Commands
Best Practice
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Best Practices

To ensure a smooth integration process and optimal performance, follow these best practices:

  1. Use secure HTTPS connections for all API requests.
  2. Implement robust error handling to handle potential issues gracefully.
  3. Regularly update your integration to stay current with any API changes or enhancements.
Error Handling Examples