How OCR method works on Matlab

Hi everyone, I need some help about this question. I have choose optical character recognition (OCR) for my Signals and Systems course but I couldn't find anything which feature extantion matlab uses for that. I mean, what happen after when I use "ocr" on matlab? How does it find the character on the image. Which feature extension using on this method?

I have found some methods on the internet:

• Fourier Transform
• WaveletTransform
• TemplateMatching
• Zoning
• Crossing and Distances
• Projection Histogram
• Zernike Moments
• Moment Invariants

Which of the above methods does matlab use?

Answer 1

[sourav malla]

You can find all the details from these 2 links below:-

https://www.mathworks.com/help/vision/ref/ocr.html?searchHighlight=ocr&s_tid=doc_srchtitle

https://www.mathworks.com/help/vision/optical-character-recognition-ocr.html?searchHighlight=ocr&s_tid=doc_srchtitle