Imagick::tintImage
(PECL imagick 2, PECL imagick 3)
Imagick::tintImage — Applies a color vector to each pixel in the image
Description
public Imagick::tintImage ( mixed $tint , mixed $opacity [, bool $legacy = false ] ) : bool
Applies a color vector to each pixel in the image. The length of the vector is 0 for black and white and at its maximum for the midtones. The vector weighing function is f(x)=(1-(4.0*((x-0.5)*(x-0.5)))).
Parameters
-
tint -
opacity
Return Values
Returns true on success.
Errors/Exceptions
Throws ImagickException on error.
Changelog
| Version | Description |
|---|---|
| PECL imagick 2.1.0 | Now allows a string representing the color as the first parameter and a float representing the opacity value as the second parameter. Previous versions allow only an ImagickPixel objects. |
Examples
Example #1 Imagick::tintImage()
<?php
function tintImage($r, $g, $b, $a) {
$a = $a / 100;
$imagick = new \Imagick();
$imagick->newPseudoImage(400, 400, 'gradient:black-white');
$tint = new \ImagickPixel("rgb($r, $g, $b)");
$opacity = new \ImagickPixel("rgb(128, 128, 128, $a)");
$imagick->tintImage($tint, $opacity);
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
}
?>
© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/imagick.tintimage.php