15.如何将彩色图像转换成黑白图像？\ipch\test-4e4427d0\test-954dd366.ipch
.................................\MainFrm.cpp
.................................\MainFrm.h
.................................\ReadMe.txt
.................................\..lease\CL.read.1.tlog
.................................\.......\CL.write.1.tlog
.................................\.......\link-cvtres.read.1.tlog
.................................\.......\link-cvtres.write.1.tlog
.................................\.......\link.read.1.tlog
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.................................\.......\MainFrm.obj
.................................\.......\mt.read.1.tlog
.................................\.......\mt.write.1.tlog
.................................\.......\rc.read.1.tlog
.................................\.......\rc.write.1.tlog
.................................\.......\stdafx.obj
.................................\.......\Test.Build.CppClean.log
.................................\.......\Test.exe
.................................\.......\Test.exe.intermediate.manifest
.................................\.......\Test.lastbuildstate
.................................\.......\Test.log
.................................\.......\Test.obj
.................................\.......\Test.pch
.................................\.......\Test.pdb
.................................\.......\Test.res
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.................................\.......\TestView.obj
.................................\.......\vc100.pdb
.................................\res\Test.ico
.................................\...\Test.manifest
.................................\...\Test.rc2
.................................\...\TestDoc.ico
.................................\...\Toolbar.bmp
.................................\Resource.h
.................................\stdafx.cpp
.................................\stdafx.h
.................................\Test.aps
.................................\Test.cpp
.................................\Test.h
.................................\Test.ncb
.................................\Test.rc
.................................\Test.sdf
.................................\Test.sln
.................................\Test.sln.old
.................................\Test.suo
.................................\Test.suo.old
.................................\Test.vcproj
.................................\Test.vcxproj
.................................\Test.vcxproj.filters
.................................\Test.vcxproj.user
.................................\TestDoc.cpp
.................................\TestDoc.h
.................................\TestView.cpp
.................................\TestView.h
.................................\UpgradeLog.XML
.................................\_UpgradeReport_Files\UpgradeReport.css
.................................\....................\UpgradeReport.xslt
.................................\....................\UpgradeReport_Minus.gif
.................................\....................\UpgradeReport_Plus.gif
.................................\ipch\test-4e4427d0
.................................\ipch
.................................\Release
.................................\res
.................................\_UpgradeReport_Files
15.如何将彩色图像转换成黑白图像？