Based on VS2008, the program has a very simple algorithm is very classic and practical. Traditional interpolation algorithm due to the low-pass filtering effect generally makes the target image edge blur, it is difficult to obtain satisfactory visual effects in order to achieve a better quality image scaling is proposed based on cubic Lagrange interpolation algorithm for adaptive image scaling algorithm that First calculate the target pixel set of source pixels around three variance, minimum variance select a set of source pixels, then the cubic Lagrange interpolation formula obtained target pixel gray value Experimental results show that the algorithm proceeds target image sharp edges, and the algorithm complexity is low, easy hardware implementation can achieve real-time image scaling.

Lagrange\Debug\Lagrange.exe
........\Lagrange\CleanTemp.bat
........\........\CxMatlab.cpp
........\........\CxMatlab.h
........\........\Lagrange.cpp
........\........\Lagrange.h
........\........\Lagrange.rc
........\........\Lagrange.vcproj
........\........\Lagrange.vcproj.MICROSOF-HOST.Super Manager.user
........\........\LagrangeDlg.cpp
........\........\LagrangeDlg.h
........\........\ReadMe.txt
........\........\res\Lagrange.ico
........\........\...\Lagrange.rc2
........\........\resource.h
........\........\stdafx.cpp
........\........\stdafx.h
........\........\targetver.h
........\Lagrange.sln
........\Lagrange.suo
........\........\Debug
........\........\res
........\Debug
........\Lagrange
Lagrange
MFC示例：Lagrange插值算法的实现\Lagrange\Debug\Lagrange.exe
...............................\........\Lagrange\CleanTemp.bat
...............................\........\........\CxMatlab.cpp
...............................\........\........\CxMatlab.h
...............................\........\........\Lagrange.cpp
...............................\........\........\Lagrange.h
...............................\........\........\Lagrange.rc
...............................\........\........\Lagrange.vcproj
...............................\........\........\Lagrange.vcproj.MICROSOF-HOST.Super Manager.user
...............................\........\........\LagrangeDlg.cpp
...............................\........\........\LagrangeDlg.h
...............................\........\........\ReadMe.txt
...............................\........\........\res\Lagrange.ico
...............................\........\........\...\Lagrange.rc2
...............................\........\........\resource.h
...............................\........\........\stdafx.cpp
...............................\........\........\stdafx.h
...............................\........\........\targetver.h
...............................\........\Lagrange.sln
...............................\........\Lagrange.suo
...............................\........\........\Debug
...............................\........\........\res
...............................\........\Debug
...............................\........\Lagrange
...............................\Lagrange
MFC示例：Lagrange插值算法的实现

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