改变图像的对比度和亮度.docx

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1、西安工业大学OpenCV实验报告学号：101001116姓名：王兵指导老师：刘建伟完成时间：2013/9/11改变图像的对比度和亮度一、实验目标：•访问像素值•用0初始化矩阵•学习saturatecast二、实验原理：对图片中每个像素点的值进行变换，其变换公式为：　　g(i,j)=contrast*f(i,j)+brightness.　　其中g(i,j)为变换后第i行第j列像素点值，f(i,j)为变换前对应点的值。三、实验环境：Opencv:2.3.1版本MicrosoftVisualStudio2008（简称：vs2008）OS：WinXP位系统。四、实验步骤：1.新建

2、工程，命名为：addTwoImages.2.编写代码（参考附录中的源代码）3.选择SolutionExplorer里的opencvhello项目，点击鼠标右键，选Properties：在[链接器LINKER]的[输入INPUT]中,为项目的Debug配置增加[附加依赖项AdditionalDependencies]：opencv_calib3d231d.libopencv_contrib231d.libopencv_core231d.libopencv_features2d231d.libopencv_flann231d.libopencv_gpu231d.libopen

3、cv_highgui231d.lib;opencv_imgproc231d.libopencv_legacy231d.libopencv_ml231d.libopencv_objdetect231d.libopencv_ts231d.libopencv_video231d.lib1.单击，右键项目名称：按Rebuild。如果在控制台出现如下代码则程序正确，通过调试。1>------RebuildAllstarted:Project:twoImages,Configuration:DebugWin32------1>Deletingintermediateandoutput

4、filesforproject'twoImages',configuration'Debug

5、Win32'1>Compiling...1>stdafx.cpp1>Compiling...1>twoImages.cpp1>d:opcvopencvbuildmyinstallincludeopencv2flannlogger.h(66):warningC4996:'fopen':Thisfunctionorvariablemaybeunsafe.Considerusingfopen_sinstead.Todisabledeprecation,use_CRT_

6、SECURE_NO_WARNINGS.Seeonlinehelpfordetails.1>d:vs2008vcincludestdio.h(237):seedeclarationof'fopen'1>d:opcvopencvbuildmyinstallincludeopencv2flannflann.hpp(233):warningC4996:'cv::flann::Index_':wasdeclareddeprecated1>d:opcvopencvbuildmyinstallincludeopencv2flannfla

7、nn.hpp(278):seereferencetoclasstemplateinstantiation'cv::flann::Index_'beingcompiled1>Compilingmanifesttoresources...1>Microsoft(R)Windows(R)ResourceCompilerVersion6.0.5724.01>Copyright(C)MicrosoftCorporation.Allrightsreserved.1>Linking...1>LINK:D:vsprojecttwoImagesDebugtwoImages.e

8、xenotfoundornotbuiltbythelastincrementallink;performingfulllink1>Embeddingmanifest...1>Microsoft(R)Windows(R)ResourceCompilerVersion6.0.5724.01>Copyright(C)MicrosoftCorporation.Allrightsreserved.1>Buildlogwassavedat"file://d:vsprojecttwoImagestwoImagesDebugBuil