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PHP | Imagick modulateImage() Function
  • Difficulty Level : Easy
  • Last Updated : 01 Oct, 2019

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 
  
/*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 
  
/*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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