PHP | Imagick getImageHistogram() Function

The Imagick::getImageHistogram() function is an inbuilt function in PHP which is used to get the image histogram.

Syntax:

array Imagick::getImageHistogram( void )

Parameters: This function does not accept any parameter.

Return Value: This function returns an array of ImagickPixel objects containing histogram of image.

Exceptions: This function throws ImagickException on error.



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

Program 1:

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<?php
  
// Create a new imagick object
$imagick = new Imagick(
  
// Get the Histogram
$histogram = $imagick->getImageHistogram();
  
print("<pre>".print_r($histogram, true)."</pre>");
?>

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Output:

Returns an array with 2955 Imagick objects as members.

Program 2:

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<?php
  
// Create a new imagick object
$imagick = new Imagick(
  
// Get the Histogram
$histogram = $imagick->getImageHistogram();
  
print("<pre>".print_r($histogram, true)."</pre>");
?>

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Output:

Returns an array with 1725 Imagick objects as members.

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

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