Description: Open this example use the directory pic in the picture, then click the button "turn", "1", "2", "3", "4" and "5", you can achieve precise positioning plate.
Concrete steps
1.24 True Color-> 256-color greyscale.
2. Preconditioning: median filter.
3. Binarization: an initial threshold T with the image binarization by A binary image B.
Determine the initial threshold T, is: Select the threshold value T = Gmax-(Gmax-Gmin)/3, Gmax and Gmin are the maximum and minimum gray value.
The threshold for a certain adaptability of different licenses, to ensure that the basic background is set to 0, to highlight the license area.
4. Weaken the background interference. B to do a simple image gray value of adjacent pixels subtracted to get a new image G, the Gi, j = | Pi, j-Pi, j-1 | i = 0,1, ..., 439 j = 0 , 1, ..., 639Gi, 0 = Pi, 0, the left edge of the direct assignment will not affect the overall results.
5. With a custom template for the median filter
To Search:
- [edge4] - edge detection algorithms in c/c++
- [Mirror-Image] - Image image algorithms, including the ve
File list (Check if you may need any files):
chap12\readme.txt
......\车牌媚位\ChildFrm.cpp
......\........\ChildFrm.h
......\........\ColorTable.h
......\........\DIBAPI.CPP
......\........\DIBAPI.H
......\........\edgecontour.cpp
......\........\edgecontour.h
......\........\MainFrm.cpp
......\........\MainFrm.h
......\........\ReadMe.txt
......\........\Resource.h
......\........\StdAfx.cpp
......\........\StdAfx.h
......\........\suanfa1.cpp
......\........\suanfa1.h
......\........\TemplateTrans.cpp
......\........\TemplateTrans.h
......\........\TypeRec.aps
......\........\TypeRec.clw
......\........\TypeRec.cpp
......\........\TypeRec.dsp
......\........\TypeRec.dsw
......\........\TypeRec.h
......\........\TypeRec.ncb
......\........\TypeRec.opt
......\........\TypeRec.plg
......\........\TypeRec.rc
......\........\TypeRec.rc.bak
......\........\TypeRecDoc.cpp
......\........\TypeRecDoc.h
......\........\TypeRecView.cpp
......\........\TypeRecView.h
......\........\Debug\ChildFrm.obj
......\........\.....\DIBAPI.obj
......\........\.....\edgecontour.obj
......\........\.....\MainFrm.obj
......\........\.....\StdAfx.obj
......\........\.....\suanfa1.obj
......\........\.....\TemplateTrans.obj
......\........\.....\TypeRec.exe
......\........\.....\TypeRec.ilk
......\........\.....\TypeRec.obj
......\........\.....\TypeRec.pch
......\........\.....\TypeRec.pdb
......\........\.....\TypeRec.res
......\........\.....\TypeRecDoc.obj
......\........\.....\TypeRecView.obj
......\........\.....\vc60.idb
......\........\.....\vc60.pdb
......\........\pic\Img10_24.bmp
......\........\...\Img1_24.bmp
......\........\res\Toolbar.bmp
......\........\...\TypeRec.ico
......\........\...\TypeRec.rc2
......\........\...\TypeRecDoc.ico
......\........\Debug
......\........\pic
......\........\res
......\车牌媚位
chap12
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