Why is ocr not working in this case

Hello,

I have a picture with text written on it and ocr doesn't work on it

I = imread('image1_bw.png');
imshow(I);
roi = [117,82,307,213];
hold on
rectangle('Position',roi,'EdgeColor','r')
hold off

text=ocr(I,roi)

text = 
  ocrText with properties:

                      Text: 'OPO↵Ot↵ONO↵PENG↵↵'
    CharacterBoundingBoxes: [17×4 double]
      CharacterConfidences: [17×1 single]
                     Words: {4×1 cell}
         WordBoundingBoxes: [4×4 double]
           WordConfidences: [4×1 single]
                 TextLines: {4×1 cell}
     TextLineBoundingBoxes: [4×4 double]
       TextLineConfidences: [4×1 single]

I should add that on my machine the result is different as I get

Text: ''

Probably because the version is different I'm using the 2021a release and the version 10.0 of the computer toolbox

I have no idea why ocr is not working in this case. If someone has a fix it will be very helpfull :)

Answer 1

[Matteo Bonhomme]

I ended up training ocr on more sample and now it's working.

I think the issue was that the basekit function doesn't know this specific font.

Answer 2

[Image Analyst]

ocr() has lots of options. Try experimenting wtih them.