PHP | Imagick setImageGravity() Function

PHP | Imagick setImageGamma() Function

Last Updated : 19 Nov, 2019

The Imagick::setImageGamma() function is an inbuilt function in PHP which is used to set the image gamma. Syntax:

bool Imagick::setImageGamma( float $gamma )

Parameters: This function accepts a single parameter $gamma which holds the gamma for the image. Return Value: This function returns TRUE on success. Exceptions: This function throws ImagickException on error. Below given programs illustrate the Imagick::setImageGamma() function in PHP: Program 1:

php

<?php

// Create a new imagick object
$imagick = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-13.png');

// Set the Gamma
$imagick->setImageGamma(5);

// Display the image
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>

Output:

Program 2:

php

<?php

// Create a new imagick object
$imagick = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-13.png');

// Set the Gamma
$imagick->setImageGamma(15);

// Add a border
$imagick->borderImage('black', 2, 2);

// Display the image
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>

Output:

Reference: https://www.php.net/manual/en/imagick.setimagegamma.php

PHP | Imagick setImageGravity() Function

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