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Broken line(edge) detection from binary image

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Hi,

I'm trying to mark(detect) 4 straight lines from a binary image and whether any of them are broken (not straith).
If there are any broken lines, i wish to mark(detect) these lines (edges) with a vertical line (which in this case(Test_Image) is located up in the right side corner).
I have created an application(VI) which seems to work well with the "raw" image, but when I extract the colorplane (blue) and try to detect the lines from the binary image (not the raw image), i can't seem to find anything. Maybe i'm using the wrong tools(VI's) or simply the wrong parameters(to much noise?).

Any suggestions? Smiley Happy

(It works when I use: "First Edge Rake" detection, but then I can only detect one horizontal line)

Example.JPG

 


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