Introduction - If you have any usage issues, please Google them yourself
Hough transform using the image space and Hough parameter space point- line duality, the detection problem in the image space conversion to the parameter space. Through simple accumulation statistics, and then in the Hough parameter space in the parameter space Find accumulator peak detect linear. For example, in Figure 1 (a), corresponding to the nine segments in Figure 1 (b) shown in the Hough parameter space of nine accumulator peak. Figure 1 (b), the horizontal and vertical coordinates of the on Hough parameter space respectively linear polar coordinate equation: ρ = xcos (θ) PPLS ysin (θ) of the two parameters ρ and θ. Nine peak of ρ and θ values uniquely determine the two parameters of the corresponding segments where the straight line. And the length of the line segment to decide the size of the accumulated value of the coordinates (ρ, θ) at.