szövegfelismerési

Szövegfelismerés, often translated as text recognition or optical character recognition (OCR), is a technology that converts images of typed, handwritten, or printed text into machine-readable text data. This process allows for the digital manipulation and searching of documents that were previously only available in image format.

The core of text recognition involves several stages. First, an image is preprocessed to enhance its quality, which might include deskewing, noise reduction, and binarization. Then, the system identifies individual characters or words within the image. This is typically achieved through pattern matching or machine learning algorithms that have been trained on large datasets of characters. Finally, the recognized characters are assembled into a digital string, which can then be edited, stored, or processed by other software applications.

Text recognition has a wide range of applications. It is commonly used for digitizing books and historical documents, making them searchable and accessible. Businesses utilize it for processing invoices, receipts, and other forms, automating data entry and reducing manual effort. In mobile applications, text recognition can enable features like instant translation of signs or the extraction of contact information from business cards. The accuracy of text recognition systems has significantly improved over the years, making them increasingly reliable for various tasks.