Imagick::brightnessContrastImage

(バージョン情報なし。おそらく SVN 版にしか存在しないでしょう)

Imagick::brightnessContrastImage — Description

説明

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.

パラメータ

brightness
contrast
CHANNEL

返り値

例

例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();
}

?>