This a QT Program. It can change a colored image to a gray one, in the mean time, it can change the image to symbol picture.

ChangeToGray\ChangeToGray\Android.png
............\............\bitmap1.jpg
............\............\ChangeToGray.aps
............\............\changetogray.cpp
............\............\changetogray.h
............\............\changetogray.qrc
............\............\ChangeToGray.rc
............\............\changetogray.ui
............\............\ChangeToGray.vcxproj
............\............\ChangeToGray.vcxproj.filters
............\............\ChangeToGray.vcxproj.user
............\............\Debug\ChangeToGray.log
............\............\.....\changetogray.obj
............\............\.....\ChangeToGray.tlog\ChangeToGray.lastbuildstate
............\............\.....\.................\CL.read.1.tlog
............\............\.....\.................\CL.write.1.tlog
............\............\.....\.................\custombuild.read.1.tlog
............\............\.....\.................\custombuild.write.1.tlog
............\............\.....\.................\link.read.1.tlog
............\............\.....\.................\link.write.1.tlog
............\............\.....\.................\unsuccessfulbuild
............\............\.....\main.obj
............\............\.....\moc_changetogray.obj
............\............\.....\qrc_changetogray.obj
............\............\.....\vc120.pdb
............\............\GeneratedFiles\Debug\moc_changetogray.cpp
............\............\..............\qrc_changetogray.cpp
............\............\..............\Release\moc_changetogray.cpp
............\............\..............\ui_changetogray.h
............\............\main.cpp
............\............\resource.h
............\............\x64\Debug\ChangeToGray.log
............\............\...\.....\changetogray.obj
............\............\...\.....\ChangeToGray.res
............\............\...\.....\.............tlog\ChangeToGray.lastbuildstate
............\............\...\.....\.................\CL.read.1.tlog
............\............\...\.....\.................\CL.write.1.tlog
............\............\...\.....\.................\custombuild.read.1.tlog
............\............\...\.....\.................\custombuild.write.1.tlog
............\............\...\.....\.................\link.read.1.tlog
............\............\...\.....\.................\link.write.1.tlog
............\............\...\.....\.................\rc.read.1.tlog
............\............\...\.....\.................\rc.write.1.tlog
............\............\...\.....\main.obj
............\............\...\.....\moc_changetogray.obj
............\............\...\.....\qrc_changetogray.obj
............\............\...\.....\vc120.pdb
............\............\...\Release\ChangeToGray.log
............\............\...\.......\changetogray.obj
............\............\...\.......\ChangeToGray.tlog\ChangeToGray.lastbuildstate
............\............\...\.......\.................\CL.read.1.tlog
............\............\...\.......\.................\CL.write.1.tlog
............\............\...\.......\.................\custombuild.read.1.tlog
............\............\...\.......\.................\custombuild.write.1.tlog
............\............\...\.......\.................\link.read.1.tlog
............\............\...\.......\.................\link.write.1.tlog
............\............\...\.......\main.obj
............\............\...\.......\moc_changetogray.obj
............\............\...\.......\qrc_changetogray.obj
............\ChangeToGray.sdf
............\ChangeToGray.sln
............\ChangeToGray.v12.suo
............\x64\Debug\ChangeToGray.exe
............\...\.....\ChangeToGray.ilk
............\...\.....\ChangeToGray.pdb
............\...\.....\icudt52.dll
............\...\.....\icuin52.dll
............\...\.....\icuuc52.dll
............\...\.....\.mageformats\qjpegd.dll
............\...\.....\msvcp120.dll
............\...\.....\msvcp120d.dll
............\...\.....\msvcr120.dll
............\...\.....\msvcr120d.dll
............\...\.....\platforms\qwindowsd.dll
............\...\.....\Qt5Cored.dll

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