GoLang Imagick::tintImage

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PHP Imagick::tintImage

PHP original manual for Imagick::tintImage [ show | php.net ]

Imagick::tintImage

(PECL imagick 2.0.0)

Imagick::tintImage — Applies a color vector to each pixel in the image

Description

bool Imagick::tintImage ( mixed $tint , mixed $opacity [, bool $legacy = FALSE ] )

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
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();
}

?>