Tesseract Ocr

1. INTRODUCTION 1.0 INTRODUCTION TO OCR Most of the information that is available in the knowledge base is in printed medium. This has hindered storing, exchanging and procedureing of the information e1ectronically. Converting them into electronic medium is while consuming, 1abrious and expensive as well. These factors have do people to explicate automated systems to perform this task.Optica1 Character Recognition, OCR, is the subprogram of converting scanned depicts of machine printed or hand-written text into a computer processab1e format. The process of optica1 character identification of any script can be broad1y broken pop out into five stages: * Pre touch on * Segmentation * throw extraction * Classification * Post-processing The preprocessing stage is a collection of trading operations that apply successive transformations on an mountain range. It takes in a in the buff image, reduces noise and distortion, remo ves skewness and performs skeltonizing of the image thereby simplifying the processing of the recumb of the stages. The memberation takes place in a page image and separates the variant logical parts, like text from graphics, lines of a paragraph, and characters of a word. The feature extraction stage analyzes a text fraction and selects a set of features that can be used to unequivocally identify the text segment. The selection of a stable and voice set of features is the heart of pattern recognition system design. Among the contrasting design issues involved in bui1ding an OCR system, perhaps the most important one is the se1ection of the type and set of features. The classification stage is the main(prenominal) conclusiveness making stage of an OCR system and uses the features extracted in he forward stage to identify the text segment harmonise to the predetermined rules. The post-processing stage, which is the final stage, improves recognition by refining the decis ions interpreted by the previous stage and r! ecognizes words by exploitation context. It is ultimately...If you indispensability to get a full essay, order it on our website: OrderCustomPaper.com

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