Imagick::autoLevelImage

(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::autoLevelImage — Description

説明

public void Imagick::autoLevelImage ([ string $CHANNEL = Imagick::CHANNEL_DEFAULT ] )

Adjusts the levels of a particular image channel by scaling the minimum and maximum values to the full quantum range.

パラメータ

CHANNEL: Which channel should the auto-levelling should be done on.

返り値

例

例1 Imagick::autoLevelImage()


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

?>