Php/docs/imagick.transformimagecolorspace
Imagick::transformImageColorspace
(PECL imagick 3)
Imagick::transformImageColorspace — Transforms an image to a new colorspace
说明
public Imagick::transformImageColorspace
( int $colorspace
) : bool
Transforms an image to a new colorspace.
参数
colorspace
- The colorspace the image should be transformed to, one of the COLORSPACE constants e.g. Imagick::COLORSPACE_CMYK.
返回值
成功时返回 true
。
范例
Example #1 Imagick::transformImageColorspace() example
Transforms an image to a new colorspace, and then extracts a single channel so that the individual channel values can be viewed.
<?phpfunction transformImageColorspace($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 $imagick->getImageBlob();}?>
范例
Example #2 Imagick::transformImageColorspace()
<?phpfunction transformImageColorspace($imagePath, $colorSpace, $channel) { $imagick = new \Imagick(realpath($imagePath)); $imagick->transformimagecolorspace($colorSpace); $imagick->separateImageChannel($channel); header("Content-Type: image/jpg"); echo $imagick->getImageBlob();}?>