Enhance low quality License Plate image to binarize them.
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Hi all
I have some License Plate images which have poor quality, I tried some contrast enhancement methods like HE,BHE,CLAHE,RSIHE and ... , but when I binarize them with otsu's method or some local thresholding algorithms like NIBLACK,SAUVOLA and ... , I don't get satisfied results.
please tell me how can enhance this images??
original images:
results of binaraization:
what is the problem of this images?(low contrast??) how can I improve results? thanks for your help, any idea will be welcome.
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Image Analyst
2015 年 4 月 29 日
It's not really a MATLAB question yet. You can find papers on super resolution and license plate recognition here: http://www.visionbib.com/bibliography/contents.html I'm sure you're not the first person to deal with poor quality license plate images. Find out how the other people dealt with it in their published papers.
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