How to Use a PHP Image Processing Library to Tell if a Image is Simple or Complex Using the Package Shannon Entropy Calculator: Measure image complexity using Shannon entropy

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Last Updated		Ratings				Unique User Downloads		Download Rankings
2025-04-01 (3 months ago)		Not yet rated by the users				Total: Not yet counted		Not yet ranked

Version		License		PHP version		Categories
`shannonentropycalcul` 1.0		MIT/X Consortium ...		5		Algorithms, PHP 5, Graphics

Description

Author

Roberto Aleman

This package can measure image complexity using Shannon entropy.

It can take the path of an image file and perform entropy analysis.

The class returns an array with a number that is the entropy level and a text string that explains the meaning of the returned entropy level.

Innovation Award

April 2025
Number 3

Image entropy is a calculation that can be performed on the content of images to determine how simple or complex the image is.

This package can calculate the image entropy level of a given image and return a human-readable interpretation of the calculated entropy for that image.

Manuel Lemos

Roberto Aleman

Performance

Level

Name:	Roberto Aleman `<contact>`
Classes:	29 packages by Roberto Aleman
Country:	Venezuela
Age:	51
All time rank:	139	1 in Venezuela
Week rank:	195	2 in Venezuela

Level 5

Innovation award

Nominee: 18x

Winner: 3x

Instructions

Please check this example script to learn how to use this package.

Example


<?php





/* Author: Roberto Aleman, ventics.com , license: GNU AGPLv3 */





echo "Author: Roberto Aleman, ventics.com , license: GNU AGPLv3 <br/><br/>";





include 'ShannonEntropyCalculator.php';











// Ejemplo de uso


$imagePath = 'img0.png'; // Reemplaza con la ruta de tu imagen


$calculator = new ShannonEntropyCalculator($imagePath);


$resultado = $calculator->calcularEntropia();


echo "<img src='img0.png' style='width: 150px;height: 150px;'><br/>";


echo "Shannon Entropy: " . $resultado['entropia'] . "\n";


echo "Results: " . $resultado['diagnostico'] . "\n";


echo "<br/>------------------------------------<br/><br/>";








$imagePath = 'img1.png'; // Reemplaza con la ruta de tu imagen


$calculator = new ShannonEntropyCalculator($imagePath);


$resultado = $calculator->calcularEntropia();


echo "<img src='img1.png' style='width: 150px;height: 150px;'><br/>";


echo "Shannon Entropy: " . $resultado['entropia'] . "\n";


echo "Results: " . $resultado['diagnostico'] . "\n";


echo "<br/>------------------------------------<br/><br/>";








$imagePath = 'img2.png'; // Reemplaza con la ruta de tu imagen


$calculator = new ShannonEntropyCalculator($imagePath);


$resultado = $calculator->calcularEntropia();


echo "<img src='img2.png' style='width: 150px;height: 150px;'><br/>";


echo "Shannon Entropy: " . $resultado['entropia'] . "\n";


echo "Results: " . $resultado['diagnostico'] . "\n";


echo "<br/>------------------------------------<br/><br/>";











$imagePath = 'img3.png'; // Reemplaza con la ruta de tu imagen


$calculator = new ShannonEntropyCalculator($imagePath);


$resultado = $calculator->calcularEntropia();


echo "<img src='img3.png' style='width: 150px;height: 150px;'><br/>";


echo "Shannon Entropy: " . $resultado['entropia'] . "\n";


echo "Results: " . $resultado['diagnostico'] . "\n";


echo "<br/>------------------------------------<br/><br/>";








$imagePath = 'img4.png'; // Reemplaza con la ruta de tu imagen


$calculator = new ShannonEntropyCalculator($imagePath);


$resultado = $calculator->calcularEntropia();


echo "<img src='img4.png' style='width: 150px;height: 150px;'><br/>";


echo "Shannon Entropy: " . $resultado['entropia'] . "\n";


echo "Results: " . $resultado['diagnostico'] . "\n";


echo "<br/>------------------------------------<br/><br/>";








?>

Files (10)

File	Role	Description
`example_sec.php`	Example	Example script
`img0.png`	Output	Icon image
`img1.png`	Output	Icon image
`img2.png`	Output	Icon image
`img3.png`	Icon	Icon image
`img4.png`	Output	Icon image
`LICENSE`	Lic.	License text
`README.md`	Doc.	Documentation
`ShannonEntropyCalculator.php`	Class	Class source
`ShannonEntropyCalc..._documentation.html`	Doc.	Documentation