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 // require_once('path/vendor/autoload.php');    // Create a new Imagick Object $image = new Imagick(    // 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
