PHP | Imagick getImageGamma() Function

PHP | Imagick getImageGamma() Function

Last Updated : 26 Aug, 2019

The Imagick::getImageGamma() function is an inbuilt function in PHP which is used to get the Gamma value of the image. The Gamma is a nonlinear operation used to encode and decode luminance or tristimulus values in images. Syntax:

float Imagick::getImageGamma( void )

Parameters: This function does not accepts any parameters. Return Value: This function returns True on success. Errors/Exceptions: It throws an ImagickException on error. Below program illustrates the Imagick::getImageGamma() function in PHP: Program:

php

<?php 
// require_once('path/vendor/autoload.php'); 
 
// Create a new Imagick Object
$image = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-14.png');
 
// getImageGamma function
$size = $image->getImageGamma();

// Display the colorspace
print_r($size);
?>
<?php

Output:

0.45454999804497

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Reference: http://php.net/manual/en/imagick.getimagegamma.php

PHP | Imagick getImageGamma() Function

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