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OCR command is not detecting certain terms

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Soumya Panda
Soumya Panda on 3 Oct 2015
Closed: MATLAB Answer Bot on 20 Aug 2021
Hey guys, I tried to use the OCR command upon this image in order to identify text here. But OCR is not identifying SHERPA SURF SCHOOL. It is only able to identify the regions in RED. I guess it is because of the colour disparity amognst red and black layers.Any help in this regard would be deeply appreciated !!!

Answers (1)

Image Analyst
Image Analyst on 3 Oct 2015
First extract the separate color channels,
% Extract the individual red, green, and blue color channels.
redChannel = rgbImage(:, :, 1);
greenChannel = rgbImage(:, :, 2);
blueChannel = rgbImage(:, :, 3);
threshold each one for white,
binaryR = redChannel > 200; % Or whatever value works
binaryG = greenChannel > 200; % Or whatever value works
binaryB = blueChannel > 200; % Or whatever value works
then AND the three binary images together.
finalImage = binaryR & binaryG & binaryB;
Now do the OCR.
or

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