(PECL imagick 3)
Imagick::haldClutImage — Replaces colors in the image
public Imagick::haldClutImage ( Imagick $clut [, int $channel = Imagick::CHANNEL_DEFAULT ] ) : bool
Replaces colors in the image using a Hald lookup table. Hald images can be created using HALD color coder.
clut
Imagick object containing the Hald lookup image.
channel
Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. Defaults to Imagick::CHANNEL_DEFAULT. Refer to this list of channel constants
Returns true on success.
Throws ImagickException on error.
Example #1 Imagick::haldClutImage()
<?php
function haldClutImage($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imagickPalette = new \Imagick(realpath("images/hald/hald_8.png"));
$imagickPalette->sepiatoneImage(55);
$imagick->haldClutImage($imagickPalette);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
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https://www.php.net/manual/en/imagick.haldclutimage.php