Why my OCR results are not accurate?

4 views (last 30 days)
Panpan Li
Panpan Li on 28 Jan 2023
Commented: Image Analyst on 28 Jan 2023
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?

Answers (1)

Image Analyst
Image Analyst on 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.
Image Analyst
Image Analyst on 28 Jan 2023
You could try imresize, but the underlying resolution will still be poor so the results might not be more accurate.

Sign in to comment.


Find more on Convert Image Type in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by