PHP Classes

How to Create a PHP Captcha Decoder with PHP OCR Class: Recognize text & objects in graphical images

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Version License PHP version Categories
phpocr 1.0.0Free for non-comm...3Algorithms, PHP 5, Graphics, Artifici...
Description 

Author

Andrey Kucherenko

This is class can be used as a tool for optical character recognition.

It can recognize text in monochrome graphical images after a training phase. The training phase is necessary to let the class build recognition data structures from images that have known characters.

The training data structures are used during the recognition process to attempt to identify text in real images using the corner algorithm.

Innovation Award
PHP Programming Innovation award winner
February 2006
Winner

Prize: One copy of the Zend Studio		 Certain types of applications require reading text from documents that are stored as graphical images. That is the case of scanned documents.

An OCR (Optical Character Recognition) tool can be used to recover the original text that is written in scanned documents. These are sophisticated tools that are trained to recognize text in graphical images.

This class provides a base implementation for an OCR tool. It can be trained to learn how to recognize each letter drawn in an image. Then it can be used to recognize longer texts in real documents.

Manuel Lemos
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Name: Andrey Kucherenko is available for providing paid consulting. Contact Andrey Kucherenko .
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Age: 43
All time rank: 201 in Ukraine Ukraine
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Innovation award
Innovation award
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Winner: 1x

Recommendations

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Decaptha OCR Class
Get the text in CAPTCHA images

Recognize text in images
We want a complete PHP ocr to embed in our application

Example

<?php
/**
 * Example, check images from file
 *
 * @author Andrey Kucherenko <kucherenko.andrey@gmail.com>
 * @package phpOCR
 */
include_once("config.php");
include_once("OCR.class.php");

//make new OCR object
$char = new OCR();

//Recognition process, check images from files
echo "<hr/><img src='M.png'/><br/>";
$res = $char->Recognition('M.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='M1.png'/><br/>";
$res = $char->Recognition('M1.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='z11.png'/><br/>";
$res = $char->Recognition('z11.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='z1.png'/><br/>";
$res = $char->Recognition('z1.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='Z.png'/><br/>";
$res = $char->Recognition('Z.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='B.png'/><br/>";
$res = $char->Recognition('B.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='B1.png'/><br/>";
$res = $char->Recognition('B1.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='W.png'/><br/>";
$res = $char->Recognition('W.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='W1.png'/><br/>";
$res = $char->Recognition('W1.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}


echo "<hr/><img src='W2.png'/><br/>";
$res = $char->Recognition('W2.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}

echo "<hr/><img src='plus1.png'/><br/>";
$res = $char->Recognition('plus1.png');
if ($res!==false){
    echo "<b>".$res->getName()."</b>";
}else{
    echo "Not yet recognised.<br/>";
}


?>

Details

This folder must have right to read/write for php user.

  Files folder image Files (18)  
File Role Description
Files folder imagestorage (1 file)
Accessible without login Image file B.png Data B.png
Accessible without login Image file B1.png Data B1.png
Plain text file char.object.php Class char object
Accessible without login Plain text file config.php Conf. config
Accessible without login Plain text file example.php Example example
Accessible without login Plain text file example_1.php Example example #1
Accessible without login Image file M.png Data M.png
Accessible without login Image file M1.png Data Sample image
Plain text file OCR.class.php Class main phpOCR class
Accessible without login Image file plus.png Data plus.png
Accessible without login Image file plus1.png Data plus1.png
Accessible without login Image file W.png Data char data
Accessible without login Image file W1.png Data W1.png
Accessible without login Image file W2.png Data Negative example image
Accessible without login Image file Z.png Data Z.png
Accessible without login Image file z1.png Data z1.png
Accessible without login Image file z11.png Data z11.png

  Files folder image Files (18)  /  storage  
File Role Description
  Accessible without login Plain text file readme Data Storage description

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 Version Control Unique User Downloads Download Rankings  
 0%
Total:35,304
This week:2
All time:13
This week:21Down
User Ratings User Comments (6)
 All time
Utility:81%StarStarStarStarStar
Consistency:83%StarStarStarStarStar
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Examples:69%StarStarStarStar
Tests:-
Videos:-
Overall:56%StarStarStar
Rank:1861
 
Thank you for this package.
1 month ago (First)		55%StarStarStar
Extremely old and forgotten package, don't bother
7 years ago (Microservice)		35%StarStar
It's don't works ;(.
7 years ago (Tsumiki)		15%Star
Could you please add Example about Reading some text from a S...
9 years ago (Tariqul Islam)		65%StarStarStarStar
This site needs more unique stuff like this class.
16 years ago (Alexander Skakunov)		70%StarStarStarStar
hmmm nice one.
16 years ago (Adnan Haider)		50%StarStarStar
 

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  Pages that reference this package  
I CAPTCHA sono le immagini di verifica presenti nei form (che sono utilizzate per combattere lo spam automatico via bot)...
Pensavate che i vostri forum o i vostri form di registrazione fossero al sicuro con i i captcha? Vi sbaglivate…
Puoi usare una classe OCR (Optical Character Recognition), che è un sofisticato sistema funzionante come un occhio umano digitale...
Google has filed a patent application in July 2007, which has just recently become public claiming methods where robots can read and understand text in images and video...
phpOCR is a class from Andrey Kucherenko that can do Optical Character Recognition...
ich werde aus der phpOCR Class nicht schlau...
PhpOcr es una funció de php que permet reconèixer text des d’una imatge, d’aquí OCR...
phpOCR es una librería que nos permite reconocer el texto que esta impreso en un archivo de imágen (Optical Character Recognition)...
An OCR with PHP ?...
Cada vez me sorprenden más las cosas que se pueden hacer programando...
Hace mucho tiempo que se usa el reconocimiento óptico de caracteres o marcas, para poder determinar a partir de una imagen qué es lo que tiene dentro...

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