Description: The code used VC and opencv, used to calculate the image coordinates of the rectangle four vertices, the first two values, find contour, after seeking the coordinates given rectangle, great reference value
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cvddzuobiao\cvddzuobiao.cpp
...........\cvddzuobiao.dsp
...........\cvddzuobiao.dsw
...........\cvddzuobiao.ncb
...........\cvddzuobiao.opt
...........\cvddzuobiao.plg
...........\Debug\cvddzuobiao.exe
...........\.....\cvddzuobiao.ilk
...........\.....\cvddzuobiao.obj
...........\.....\cvddzuobiao.pch
...........\.....\cvddzuobiao.pdb
...........\.....\vc60.idb
...........\.....\vc60.pdb
...........\Debug
cvddzuobiao