image processing - HoughLinesP with slightly distorted lines in OpenCV -



image processing - HoughLinesP with slightly distorted lines in OpenCV -

i'm trying observe horizontal , vertical lines in image using houghlinesp function in opencv. i've set rho = 1, theta = cv_pi / 2 , minlinelength minimum expected line length.

but turned out lines occupy more 1 line of pixels on image: shifted , forth 1 pixel due noise in image (this illustrated in attachment). in case line becomes split many shorter segments , hence not detected.

i've tried set rho = 2 decrease accumulator resolution, didn't solve problem. seems solution should pretty easy, didn't figure out yet. suggest something?

did take @ line segment detector ? http://www.ipol.im/pub/art/2012/gjmr-lsd/

opencv image-processing computer-vision hough-transform

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