How OCR method works on Matlab
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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
- Crossing and Distances
- Projection Histogram
- Zernike Moments
- Moment Invariants
Which of the above methods does matlab use?