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PHP | Imagick posterizeImage() Function
  • Last Updated : 26 Aug, 2019

The Imagick::posterizeImage() function is an inbuilt function in PHP which is used to reduces the image to a limited number of color level.


bool Imagick::posterizeImage( $levels, $dither )

Parameters: This function accepts two parameters as mentioned above and described below:

  • $levels: This parameter is used to set the level of color.
  • $dither: This parameter is used to hold the dither Boolean value.

Return Value: This function returns True on success.

Below program illustrates the Imagick::posterizeImage() function in PHP:


// Create an imagick object
$imagick = new Imagick(
// Use posterizeImage function
$imagick->posterizeImage(8, 'true');
// Set image format
header("Content-Type: image/png");
// Display the output image
echo $imagick->getImageBlob();

posterize image


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