The things that you mentione are not just details, they are subject of wide study and specialization.
>From all the books from computer vision / image processing that I have, the best one that addresses your enquiries is "Algorithms for Image Processing and Computer Vision", from J.R. Parker, 2nd edition. ISBN 978-0-470-64385-3 Cheers, Andres El domingo, 11 de junio de 2017, 16:06:43 (UTC-3), [email protected] escribió: > > I am trying to do do OCR using tesseract on images. I am unable to figure > out a proper pre processing technique for the same. > > the problems I am facing is: > > 1. Low contrast images: The images have different texts with different > font sizes. So what should be my approach to enhance the contrast of any > image. > > 2. Problem of touching characters: Sometimes after applying adaptive > thresholding I am facing the problem of touching characters (in which two > adjacent characters are touching each other) What is the best way to figure > out a solution for that. > > 3. Problem of non uniform illumination: How should I proceed if I want to > solve the problem of non uniform illumination ? > > How can image segmentation solve my problem ? > > I have added a sample image. Assume that the image is not rotated as it is > there in the picture. But the variety of font sizes and the text segments > in the image are exact replica of what I am asking about ? Apart from above > mentioned steps, I would appreciate any kind of suggestion for pre - > processing of the above image. Let me know if you have worked out a > solution for something related to this. > > Thanks > > > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/2529d192-ee17-4979-aea4-b8e9c3e80980%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
