(PECL imagick 3 >= 3.3.0)
Imagick::blueShiftImage — Description
public Imagick::blueShiftImage ([ float $factor = 1.5 ] ) : bool
Mutes the colors of the image to simulate a scene at nighttime in the moonlight.
factor
Returns true on success.
Example #1 Imagick::blueShiftImage()
<?php
function blueShiftImage($imagePath, $blueShift) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->blueShiftImage($blueShift);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
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https://www.php.net/manual/en/imagick.blueshiftimage.php