Imagick::brightnessContrastImage
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Imagick::brightnessContrastImage — Description
Опис
public void Imagick::brightnessContrastImage
( string
$brightness
, string $contrast
[, string $CHANNEL = Imagick::CHANNEL_DEFAULT
] )Change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.
Параметри
-
brightness -
-
contrast -
-
CHANNEL -
Значення, що повертаються
Приклади
Приклад #1 Imagick::brightnessContrastImage()
<?php
function brightnessContrastImage($imagePath, $brightness, $contrast, $channel) {
$imagick = new \Imagick(realpath($imagePath));
$imagick->brightnessContrastImage($brightness, $contrast, $channel);
header("Content-Type: image/jpg");
echo $imagick->getImageBlob();
}
?>
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