This SO question and answer might help clarify why transformImageColorspace is useful: http://stackoverflow.com/questions/29296779/convert-pdf-with-transparency-and-cmyk-to-jpg
Also, there's a Github issue here that explains the difference between transformImageColorspace and setImageColorspace: https://github.com/rmagick/rmagick/pull/75
Imagick::transformImageColorspace
(No version information available, might only be in Git)
Imagick::transformImageColorspace — Transforms an image to a new colorspace.
설명
bool Imagick::transformImageColorspace
( int
$colorspace
)Transforms an image to a new colorspace.
인수
-
colorspace -
The colorspace the image should be transformed to, one of the COLORSPACE constants e.g. Imagick::COLORSPACE_CMYK.
반환값
성공 시 TRUE를, 실패 시 FALSE를 반환합니다.
예제
Example #1 Imagick::transformImageColorspace() example
Transforms an image to a new colorspace, and then extracts a single channel so that the individual channel values can be viewed.
<?php
function transformImageColorspace($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 $imagick->getImageBlob();
}
?>
참고
- Imagick::setColorSpace() - Set colorspace
예제
Example #2 Imagick::transformImageColorspace()
<?php
function transformImageColorspace($imagePath, $colorSpace, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->transformimagecolorspace($colorSpace);
$imagick->separateImageChannel($channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
add a note
User Contributed Notes 1 note
A.Ross ¶
9 years ago
