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Imagick::orderedPosterizeImage

PHP function Deprecated as of PECL imagick 3.4.4 Edit on GitHub ✎

(PECL imagick 2 >= 2.2.2, PECL imagick 3)

Performs an ordered dither

Function-3-4-4

Description

Imagick::orderedPosterizeImage(string $threshold_map, int $channel = Imagick::CHANNEL_DEFAULT): bool

Performs an ordered dither based on a number of pre-defined dithering threshold maps, but over multiple intensity levels, which can be different for different channels, according to the input arguments. 0x631

Parameters

threshold_map: A string containing the name of the threshold dither map to use
channel: Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channeltype constants using bitwise operators. Refer to this list of channel constants.

Return Values

Success

Errors/Exceptions

Throws

Examples

Imagick::orderedPosterizeImage()

php

<?php
function orderedPosterizeImage($imagePath, $orderedPosterizeType) {
    $imagick = new \Imagick(realpath($imagePath));
    
  
    $imagick->orderedPosterizeImage($orderedPosterizeType);
    $imagick->setImageFormat('png');
    
    header("Content-Type: image/png");
    echo $imagick->getImageBlob();
}

//orderedPosterizeImage($imagePath, 'o4x4,3,3');
//orderedPosterizeImage($imagePath, 'o8x8,6,6');
orderedPosterizeImage($imagePath, 'h8x8a');





?>

Source: reference/imagick/imagick/orderedposterizeimage.xml · from the official PHP manual (php/doc-en)