GoLang Imagick::brightnessContrastImage

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PHP Imagick::brightnessContrastImage

PHP original manual for Imagick::brightnessContrastImage [ show | php.net ]

Imagick::brightnessContrastImage

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Imagick::brightnessContrastImageDescription

Description

public bool Imagick::brightnessContrastImage ( float $brightness , float $contrast [, int $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

Returns TRUE on success.

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();
}

?>