Convolution.php in Image Effects 8

Namespace

Drupal\image_effects\Plugin\ImageToolkit\Operation\imagemagick

File

src/Plugin/ImageToolkit/Operation/imagemagick/Convolution.php

<?php

namespace Drupal\image_effects\Plugin\ImageToolkit\Operation\imagemagick;

use Drupal\image_effects\Plugin\ImageToolkit\Operation\ConvolutionTrait;
use Drupal\imagemagick\Plugin\ImageToolkit\Operation\imagemagick\ImagemagickImageToolkitOperationBase;

/**
 * Defines ImageMagick Convolution operation.
 *
 * @ImageToolkitOperation(
 *   id = "image_effects_imagemagick_convolution",
 *   toolkit = "imagemagick",
 *   operation = "convolution",
 *   label = @Translation("Convolution"),
 *   description = @Translation("Adjust image convolution.")
 * )
 */
class Convolution extends ImagemagickImageToolkitOperationBase {
  use ConvolutionTrait;

  /**
   * {@inheritdoc}
   */
  protected function execute(array $arguments) {
    if (isset($arguments['kernel']) && isset($arguments['divisor']) && isset($arguments['offset'])) {
      $matrix_s = '';
      foreach ($arguments['kernel'] as $vector) {
        $vector = array_map(function ($e) use ($arguments) {
          return $e / $arguments['divisor'] + $arguments['offset'];
        }, $vector);
        $matrix_s .= implode(',', $vector) . " ";
      }
      $matrix_s = substr($matrix_s, 0, -1);
      $this
        ->getToolkit()
        ->addArgument("-morphology Convolve '3x3:{$matrix_s}'");
    }
    return TRUE;
  }

}

Classes

Name	Description
Convolution	Defines ImageMagick Convolution operation.