Not recognizing numbers in a number plate

[BBDS]

Hi All,

Above is my image. I have been using default settings for the tesseract instance. Tess4j version is 4.0.2. Last digit of above number plate is identified as 2 instead 4. Thanks in advance

[Zdenko Podobny]

you need to locate text properly and than do relevant call (in tess4j) to this command:

tesseract.exe plate.jpg - --psm 6
Warning: Invalid resolution 0 dpi. Using 70 instead.
06 K0274

Zdenko

ne 26. 5. 2019 o 13:45 BBDS <polixiai...@gmail.com> napísal(a):

Hi All,

Above is my image. I have been using default settings for the tesseract instance. Tess4j version is 4.0.2. Last digit of above number plate is identified as 2 instead 4. Thanks in advance

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[Polixia Incubator]

Hi Zdenko,

I'm not executing that via command line. It is a Springboot service, which has below implementation. Can you suggest something for this as well. Thank you for the quick response.

ByteArrayInputStream bis =new ByteArrayInputStream(DatatypeConverter.parseBase64Binary(image));
ITesseract instance = new Tesseract();

instance.setDatapath("testdata");

instance.setLanguage("eng");

try
{
    String imgText = instance.doOCR(ImageIO.read(bis));
    return imgText;
}
catch (TesseractException e)
{
    throw new ImageReaderException("Image processing filed", ImageReaderConstants.READ_ERROR_CODE, 500);
} 

BBDS

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