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PHP Manual :: Imagick::brightnessContrastImage



Imagick::borderImage || Imagick::charcoalImage || Imagick || PHP Manual

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Imagick::brightnessContrastImageDescription

Description

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.

Parameters

brightness

contrast

CHANNEL

Return Values

Examples

Example #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();
}

?>



Imagick::borderImage || Imagick::charcoalImage || Imagick || PHP Manual
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