PHP | Imagick cycleColormapImage( ) Function

The Imagick::cycleColormapImage() function is an inbuilt function in PHP which is used to displace the colormap (It is a m × 3 matrix containing real numbers between 0.0 and 1.0. Each row of the matrix is an RGB vector that defines one color.) of the image by a given number of positions. If you cycle the colormap number of times then it can produce a psychedelic effect. Syntax:

bool Imagick::cycleColormapImage( $displace )

Parameters: This function accepts single parameter $displace which holds the amount to displace the colormap (in integer). Return Value: This function returns true on success. Below program illustrates the Imagick::cycleColormapImage() function in PHP: Program: php

<?php

// Declare an Imagick object
$image = new Imagick(
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-6.png');

// Use Imagick::cycleColormapImage() function
$image->cycleColormapImage (8);

header("Content-Type: image/jpg"); 

// Display the output image
echo $image->getImageBlob();

?>

Output: Reference: https://www.php.net/manual/en/imagick.cyclecolormapimage.php