International PHP Conference 2015

Imagick::tintImage

(PECL imagick 2.0.0)

Imagick::tintImageApplies a color vector to each pixel in the image

Descrição

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)))).

Parâmetros

tint

opacity

Valor Retornado

Returns TRUE on success.

Erros

Throws ImagickException on error.

Changelog

Versão Descrição
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.

Exemplos

Exemplo #1 Imagick::tintImage()

<?php
function tintImage($r$g$b$a) {
    
$a $a 100;

    
$imagick = new \Imagick();
    
$imagick->newPseudoImage(400400'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();
}

?>

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