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/neveropen.png');   /*modulateImage function*/  $image->modulateImage(60, 100, 100); echo $image; ?> |
Output:
Program 2:
<?php   /*require_once('vendor/autoload.php');*//*Imagick Object*/  $imagick = new Imagick('img/neveropen.png');   /*modulateImage*/  $imagick->modulateImage(100, 0, 100);   /*Write Image*/$imagick->writeImage('rotationalImage1.png');   /*Destroy Imagick Variable*/$imagick->destroy(); ?> |
Output:
Reference: http://php.net/manual/en/imagick.modulateimage.php
