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PHP | Imagick modulateImage() Function

Last Updated : 01 Oct, 2019
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The Imagick::modulateImage() function is an inbuilt function in PHP which is used to control the brightness, saturation, and hue of an image. Syntax:
bool Imagick::modulateImage( $brightness, $saturation, $hue )
Parameters: This function accepts three parameters as mentioned above and described below:
  • $brightness: This parameter is used to hold the value of brightness.
  • $saturation: This parameter is used to hold the value of saturation.
  • $hue: This parameter is used to hold the value of hue.
Return Value: This function returns True on success. Below programs illustrate the Imagick::modulateImage() function in PHP: Original Image: Program 1: php
<?php 

/*require_once('vendor/autoload.php'); */

header('Content-type: image/png');

/*Create Imagick Object*/

$image = new Imagick('img/geeksforgeeks.png');

/*modulateImage function*/

$image->modulateImage(60, 100, 100);
echo $image;
?>
Output: Modulate Image Program 2: php
<?php 

/*require_once('vendor/autoload.php');*/
/*Imagick Object*/

$imagick = new Imagick('img/geeksforgeeks.png');

/*modulateImage*/

$imagick->modulateImage(100, 0, 100);

/*Write Image*/
$imagick->writeImage('rotationalImage1.png');

/*Destroy Imagick Variable*/
$imagick->destroy();
?>
Output: Modulate Image Reference: http://php.net/manual/en/imagick.modulateimage.php

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