(PECL imagick 2, PECL imagick 3)
Imagick::sepiaToneImage — Sepia tones an image
$threshold
) : boolApplies a special effect to the image, similar to the effect achieved in a photo darkroom by sepia toning. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the sepia toning. A threshold of 80 is a good starting point for a reasonable tone.
threshold
成功时返回 true。
错误时抛出 ImagickException。
Example #1 Imagick::sepiaToneImage()
<?php
function sepiaToneImage($imagePath, $sepia) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->sepiaToneImage($sepia);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>