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PHP | Imagick getImageGamma() Function

  • Difficulty Level : Easy
  • 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.


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:


// require_once('path/vendor/autoload.php'); 
// Create a new Imagick Object
$image = new Imagick(
// getImageGamma function
$size = $image->getImageGamma();
// Display the colorspace



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