What is OCR (optical character recognition) and how is it relevant to extracting information from images in PHP?

OCR (optical character recognition) is a technology that allows for the recognition and extraction of text from images. In PHP, OCR can be used to extract text from images, making it possible to process and analyze the information contained within them programmatically.

// Include the Tesseract OCR library
require_once 'path/to/tesseract-ocr.php';

// Path to the image file
$imagePath = 'path/to/image.jpg';

// Initialize the Tesseract OCR object
$tesseract = new TesseractOCR($imagePath);

// Set the language for OCR
$tesseract->setLanguage('eng');

// Perform OCR on the image
$text = $tesseract->run();

// Output the extracted text
echo $text;