Imagick::colorizeImage

Blends the fill color with each pixel in the image.

ImagickPixel object or a string containing the colorize color

ImagickPixel object or an float containing the opacity value. 1.0 is fully opaque and 0.0 is fully transparent.

Returns TRUE on success.

Throws ImagickException on error.

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.

<?php
function colorizeImage($imagePath, $color, $opacity) {
    $imagick = new \Imagick(realpath($imagePath));
    $opacity = $opacity / 255.0;
    $opacityColor = new \ImagickPixel("rgba(0, 0, 0, $opacity)");
    $imagick->colorizeImage($color, $opacityColor);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}

?>