Imagick::transformImageColorspace

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

说明

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。

范例

Example #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

Imagick::setColorSpace() - Set colorspace

范例

Example #2 Imagick::transformImageColorspace()


<?php
function transformImageColorspace($imagePath, $colorSpace, $channel) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->transformimagecolorspace($colorSpace);
    $imagick->separateImageChannel($channel);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}

?>