(PECL imagick 2.0.0)
Imagick::profileImage — Adds or removes a profile from an image
Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Argumente zur Verfügung.
Adds or removes a ICC, IPTC, or generic profile from an image. If the profile is NULL, it is removed from the image otherwise added. Use a name of '*' and a profile of NULL to remove all profiles from the image.
Liefert TRUE bei Erfolg.
Wirft ImagickException bei Fehlern.
Thanks for this very valuable information.
For a further push in the correct direction please
consider that you have to download the profiles,
and your most likely sources are:
http://www.color.org/srgbprofiles.xalter
and
http://www.adobe.com/support/downloads/product.jsp?product=62&platform=Windows
Note that the profiles are free, but you must install them
to make them available on you host system.
If you need to convert images that are on CMYK format into RGB and want to preserve colour information, this may be helpful:
<?php
$image = new Imagick("CMYK_image.jpg"); // load image
$profiles = $image->getImageProfiles('*', false); // get profiles
$has_icc_profile = (array_search('icc', $profiles) !== false); // we're interested if ICC profile(s) exist
if ($has_icc_profile === false)
{
// image does not have CMYK ICC profile, we add one
$icc_cmyk = file_get_contents('/path/to/icc/SomeCMYKProfile.icc');
$image->profileImage('icc', $icc_cmyk);
}
// Then we need to add RGB profile
$icc_rgb = file_get_contents('/path/to/icc/SomeRGBProfile.icc');
$image->profileImage('icc', $icc_rgb);
$image->setImageColorSpace(Imagick::COLORSPACE_RGB);
$image->writeImage("RGB_image.jpg");
?>
There may be better and more elegant ways to do this, but hope this helped.