Optical Character Recognition

Optical character recognition (OCR) is a computer technology which helps to recognize text on documents, photographs, and other images. It can also be used to convert text from scanned documents into machine-encoded text.


Optical character recognition (OCR) is an automated process that turns printed text into a machine-readable format. It is used in applications like indexing documents and barcodes. It also helps in translating written text into multiple languages.

The basic principles of optical character recognition are document understanding, layout analysis, relevance-feedback, and character and symbol recognition. They endow OCR applications with a high degree of flexibility.

Traditionally, OCR systems were designed to recognize individual letters from a scanned document. This requires a separate model for each character. To improve performance, business rules and standard expression can be incorporated. Similarly, better performance may be achieved by taking into account the rich information contained in color images.

Some of the latest systems have advanced capabilities that make it possible to process a variety of digital image file formats. In addition, these advanced technologies enable recognition of most fonts.


Binarization is an important step in the image pre-processing phase of OCR. This step separates the text from the background. It cleans non-glyph boxes and allows for easy text classification.

In order to improve the efficiency of OCR systems, a robust binarization technique should be used. Several techniques have been proposed. The paper discusses these methods and outlines recent trends.

Niblack’s thresholding approach aims to recover text from degraded document images. However, the method does not perform well in other areas. A modified version of the traditional Niblack method, known as the Nick’s approach, is discussed in this paper.

The approach described in this paper uses a fusion of two existing binarization methods. It compares favorably to five existing methods.

In order to evaluate the performance of the proposed work, four evaluation measures were applied. The F-Measure, the F-Measure score, the misclassification penalty metric and the pixel-by-pixel (Pb) distance were determined.

Pattern recognition

Optical Character Recognition (OCR) uses a computer algorithm to scan a physical document. The software compares characters in the document with a library of patterns. These matching features are then used to extract words from the image. OCR can be used for data entry, data categorization, and text editing.

Optical Character Recognition is an inexpensive and effective solution for digitizing content. It is used on documents, photographs, and computer generated unlabeled images. Using OCR, users can quickly and easily access a document’s information.

This technology enables easy text search. It also provides a cost-effective way to digitize and store content. In addition, the technology enables effortless text editing.

Pattern recognition systems are able to recognize familiar patterns and identify unfamiliar objects. They use a combination of computer algorithms and machine learning to detect common characteristics in data and objects.

Application-oriented vs customized OCR

Optical character recognition (OCR) is a type of technology that helps recognize text from images. It works by comparing the characters in a scanned image against an internal database of words and characters. This is done to identify the characters and determine their meaning.

OCR is used to make digital texts more accessible for people with visual impairments, as well as to index printed materials for search engines. It has also been applied to automatic license plate recognition.

A simple engine uses pattern-matching algorithms to store text images and font patterns as templates. An advanced engine combines neural networks with machine learning to analyze text in images. Taking into account business rules, standard expressions and rich information in color images may improve performance.

Application-oriented OCR, also known as customized OCR, is an OCR system that is specifically optimized to handle special kinds of input. These systems take advantage of specialized architectures called LSTM networks to enhance accuracy.

Speeding up the process of identifying and registering people

Optical character recognition is a technology that enables a user to convert a variety of documents into digital form. It makes it easy to scan and digitise a document and saves resources. As a result, it has become a popular technology in a variety of industries. One example is the financial services industry, where it is used to process checks, credit cards, and voucher codes. Optical character recognition can also be found in a number of other industries. Some companies have implemented the technology in order to streamline their data entry processes and provide a better customer experience.

The main advantage of OCR is that it eliminates the need for manual data entry. There are various uses for OCR, ranging from reading the inner lining of bottle caps to scanning photographs.

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