Imagick::brightnessContrastImage

(No version information available, might only be in Git)

Imagick::brightnessContrastImage — Description

Beschreibung

public void Imagick::brightnessContrastImage ( string $brightness , string $contrast [, string $CHANNEL = Imagick::CHANNEL_DEFAULT ] )

Change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.

Parameter-Liste

brightness
contrast
CHANNEL

Rückgabewerte

Beispiele

Beispiel #1 Imagick::brightnessContrastImage()


<?php
function brightnessContrastImage($imagePath, $brightness, $contrast, $channel) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->brightnessContrastImage($brightness, $contrast, $channel);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}

?>