Файловый менеджер

Файловый менеджер - Редактировать - /home/pimjdymy/public_html/safrandsi/vendor/pixelandtonic/imagine/src/Filter/Advanced/Neighborhood.php

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<?php /* * This file is part of the Imagine package. * * (c) Bulat Shakirzyanov <mallluhuct@gmail.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. / namespace Imagine\Filter\Advanced; use Imagine\Filter\FilterInterface; use Imagine\Image\ImageInterface; use Imagine\Image\Point; use Imagine\Utils\Matrix; /* * The Neighborhood filter takes a matrix and calculates the color current pixel based on its neighborhood. * * @example * <code><pre> * a, b, c * Matrix = d, e, f * g, h, i * </pre></code> * * and color{i, j} the color of the pixel at position (i, j). It calculates the color of pixel (x, y) like that: * * <code><pre> * color (x, y) = a * color(x - 1, y - 1) + b * color(x, y - 1) + c * color(x + 1, y - 1) * + d * color(x - 1, y) + e * color(x, y) + f * color(x + 1, y) * + g * color(x - 1, y + 1) + h * color(x, y + 1) + i * color(x + 1, y + 1) * </pre></code> / class Neighborhood implements FilterInterface { /* * @var \Imagine\Utils\Matrix / protected $matrix; /* * Initialize the instance. * * @param \Imagine\Utils\Matrix $matrix / public function __construct(Matrix $matrix) { $this->matrix = $matrix; } /* * {@inheritdoc} * * @see \Imagine\Filter\FilterInterface::apply() / public function apply(ImageInterface $image) { // We reduce the usage of methods on the image to dramatically increase the performance of this algorithm. // Really... We need that performance... // Therefore we first build a matrix, that holds the colors of the image. $width = $image->getSize()->getWidth(); $height = $image->getSize()->getHeight(); $byteData = new Matrix($width, $height); for ($y = 0; $y < $height; $y++) { for ($x = 0; $x < $width; $x++) { $byteData->setElementAt($x, $y, $image->getColorAt(new Point($x, $y))); } } $dWidth = (int) (($this->matrix->getWidth() - 1) / 2); $dHeight = (int) (($this->matrix->getHeight() - 1) / 2); // foreach point, which has a big enough neighborhood for ($y = $dHeight; $y < $height - $dHeight; $y++) { for ($x = $dWidth; $x < $width - $dWidth; $x++) { $currentColor = array_fill(0, count($image->palette()->pixelDefinition()), 0); // calculate the new color based on the neighborhood for ($boxY = $y - $dHeight, $matrixY = 0; $boxY <= $y + $dHeight; $boxY++, $matrixY++) { for ($boxX = $x - $dWidth, $matrixX = 0; $boxX <= $x + $dWidth; $boxX++, $matrixX++) { foreach ($image->palette()->pixelDefinition() as $index => $stream) { $currentColor[$index] += $byteData->getElementAt($boxX, $boxY)->getValue($stream) $this->matrix->getElementAt($matrixX, $matrixY) ; } } } $image->draw()->dot(new Point($x, $y), $image->palette()->color($currentColor)); } } return $image; } }

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