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Sobel Horizontal edge detection

Well, This question is regarding to C# code sobel horizontal Edge detection. I have some images to detect the horizontal lines. There are other noise pixels as well. Once I have implement sobel horizontal algorithm it detects other pixels as horizontal lines. Also I have applied noise removing filters to remove other pixels. What i need is, detect the long horizontal line except for other pixels.

Any idea to detect the line?
Sep 12 '10 #1
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