Why my OCR results are not accurate?

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Panpan Li
Panpan Li am 28 Jan. 2023
Kommentiert: Image Analyst am 28 Jan. 2023
Hi,
I used OCR function to read the ID in my bmp file. But it is not accurate. It shows '17D31fl*'. Something not right.
How can I increase the accuracy of OCR results?

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Image Analyst
Image Analyst am 28 Jan. 2023
ocr requires that the letters be at least 20 pixels high. I don't think yours are. You should try to increase the resolution of the letters. Like get closer with your camera, zoom in, or use a higher megapixel camera sensor.
  2 Kommentare
Panpan Li
Panpan Li am 28 Jan. 2023
Can I use some algorism to increase the resolution?
Image Analyst
Image Analyst am 28 Jan. 2023
You could try imresize, but the underlying resolution will still be poor so the results might not be more accurate.

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