PHP | Imagick adaptiveResizeImage() Function

PHP | Imagick adaptiveThresholdImage() Function

Last Updated : 26 Aug, 2019

The Imagick::adaptiveThresholdImage() function is an inbuilt function in PHP which is used to select a threshold for each pixel based on intensity values in its local neighborhood. This function allows to thresholding of an image whose global intensity histogram doesn’t contain distinctive peaks.

Syntax:

bool Imagick::adaptiveThresholdImage ( $width, $height, $offset )

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

$width: This parameter is used to set the width of local neighborhood.
$height: This parameter is used to set the height of local neighborhood.
$offset: This parameter is used to set mean offset.

Return Value: This function returns TRUE on success.

Below program illustrate the Imagick::adaptiveThresholdImage() function in PHP:

Original Image:

Program:

<?php 
  
// require_once('path/to/vendor/autoload.php');  
  
header('Content-type: image/png'); 
  
$image = new Imagick( 
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-9.png'); 
  
$image->adaptiveThresholdImage(1024, 73, 0.625); 
  
echo $image; 
?> 

Output:
adaptive thresold image

Reference: http://php.net/manual/en/imagick.adaptivethresholdimage.php

PHP | Imagick adaptiveResizeImage() Function

sarthak_ishu11

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