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Before enter image description here

After enter image description here

I found a spectacular example demonstrate how to clear image before OCR, I think much about it and try to analyze it, It was awesome.

  • Compare with original image , the processed image has :
    • Remove background and unrelated objects
    • Remove flash radiance
    • Enhance text
    • Scale image to fit the content.

Does anybody know how do this ? I mean which steps ? (grey, scale, threshold,...) Thank for your reading

Tai Tran
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1 Answers1

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Looks like simple segmentation using the color of the text.

GilLevi
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  • nope, actually they use SWT, I found this solution here, but still not find Android implementation http://stackoverflow.com/questions/4837124/stroke-width-transform-swt-implementation-java-c – Tai Tran Oct 26 '13 at 01:54