PHP imagechannelextract示例

示例#1

文件： imagechannelextract-hsl.php 项目： rsky/php-gdextra

<?php

include dirname(__FILE__) . '/_init.php';
$im = imagecreatefromjpeg('images/mosaic.jpg');
$channels = imagechannelextract($im, IMAGE_EX_COLORSPACE_HSL);
imagepng($channels[0], 'output/hsl-h.png');
imagepng($channels[1], 'output/hsl-s.png');
imagepng($channels[2], 'output/hsl-l.png');

示例#2

文件： imagechannelextract.php 项目： rsky/php-gdextra

<?php

include dirname(__FILE__) . '/_init.php';
$im = imagecreatefromjpeg('images/mosaic.jpg');
$channels = imagechannelextract($im);
imagepng($channels[0], 'output/rgb-r.png');
imagepng($channels[1], 'output/rgb-g.png');
imagepng($channels[2], 'output/rgb-b.png');