Imagick::transformImageColorspace

(PECL imagick 3)

Imagick::transformImageColorspace — Transforms an image to a new colorspace

说明

public Imagick::transformImageColorspace(int $colorspace): bool

Transforms an image to a new colorspace.

参数

colorspace

The colorspace the image should be transformed to, one of the COLORSPACE constants e.g. Imagick::COLORSPACE_CMYK.

返回值

成功时返回 true。

示例

示例 #1 Imagick::transformImageColorspace() example

Transforms an image to a new colorspace, and then extracts a single channel so that the individual channel values can be viewed.

<?php
function transformImageColorspace($imagePath, $colorSpace, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->transformimagecolorspace($colorSpace);
//channel should be one of the channel constants e.g. \Imagick::CHANNEL_BLUE
$imagick->separateImageChannel($channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>

参见