Problems in recognising text with OCR from clear logical array

Hello, I have a clean image containing only some lines of text. It is the result of exporting a logical array of pixels.

Using OCR command, TEXT property results to be empty. I tried with jpg and png format, as in the attached figures.

The code I am using is just

xxx=imread(name_file);

ocr(xxx)

ans =

ocrText with properties:

Text: ''

CharacterBoundingBoxes: [0×4 double]

CharacterConfidences: [0×1 single]

Words: {0×1 cell}

WordBoundingBoxes: [0×4 double]

WordConfidences: [0×1 single]

TextLines: {0×1 cell}

TextLineBoundingBoxes: [0×4 double]

TextLineConfidences: [0×1 single]

Thank you very much

Answer 1

[Jonas]

i guess it is just a mishandling of the automatic mode recognition:

I=imread('testOCR.png');
I=rgb2gray(I);
imshow(I);

c=ocr(I,"LayoutAnalysis","block");
c.Words

ans = 4×1 cell array
    {'122591'}
    {'1EHEOE'}
    {'d1596M'}
    {'MTSEPL'}

since this contains errors, you could try to blur out the edges, maybe this helps :D

J=imgaussfilt(I,4);
J=imsharpen(J,'Radius',4,'Amount',4);
imshow(J);

c=ocr(J,"LayoutAnalysis","block");
c.Words

ans = 4×1 cell array
    {'132831'}
    {'1BHEOR'}
    {'41896M'}
    {'MTSGPU'}

this is better, but still not without errors (3 instead of 9 in the first line). maybe this can help you do change your image in such a way, that it can work