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2015-01-14 14:37:14 -0600	commented answer	lines parallel with houghlines opencv+python if I use houghlinesP I can calculate m = (y2 - y1) / (x2 - x1) but I don't know how to compare between each item or pair of points (x1y1 and x2y2) of lines vector []. I trying with itertools.combination but I don't know how to do
2015-01-13 10:49:59 -0600	asked a question	lines parallel with houghlines opencv+python I need to know how draw lines parallel, I'm beginning with Opencv, please help. I use the houghlines function for detect lines, now I want detect lines parallel, I know that the ecuacion of a lines is y = k*x+b and two lines are parallel when k1 = k2. but how represent this in opencv with houghlines?
2015-01-11 01:36:35 -0600	asked a question	Opencv with framegrabber usbtv007 linux Hello! I want to know how to use a frame grabber model usbtv007 with OpenCV, work under ubuntu 14.10 with a CCD camera and python, I need to know if I need some driver installation