Imagick::tintImage

(PECL imagick 2.0.0)

Applies a color vector to each pixel in the image

bool Imagick::tintImage ( mixed $tint, mixed $opacity )

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

Returns:

Returns TRUE on success.

Exception:

Throws ImagickException on error.

Changelog:

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:

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();
}
 
?>

Links:

http://php.net/manual/en/imagick.tintimage.php

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2025-01-10 15:47:30

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