error in detecting components using bwlabel

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SHOBA MOHAN
SHOBA MOHAN 2018-1-29
评论： Image Analyst 2018-1-30
I used bwlabel for detecting connected components but i got error output i.e 3 objects are detected instead of 8. I am attaching input image. Expecting your suggestion.

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Walter Roberson
Walter Roberson 2018-1-29
bwlabel assumes that the white pixels are where the data is and that the black pixels are holes. When you have black text on a white background you need to invert the image.
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Image Analyst
Image Analyst 2018-1-30
Or you could sum the image vertically to find the gaps between the symbols.

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