Fixed a bug where params.PFmode = true caused incorrect edge detection results.
Updated edge_drawing.py to support the new EDColor feature.
Created a new edge_drawing_demo.cpp for demonstrating the EDColor feature.
Updated ximgproc.bib to include references for EDColor.
Added tests for PFmode and EDColor in test_fld.cpp.
Added CV_WRAP to Params::read and Params::write functions to expose them to Python bindings.
the class NFALUT uses the code from original ED code
This simple detector runs up to two times faster than LSD while achieving
competitive results. Please evaluate the algorithm with samples/fld_lines.cpp
