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?VC++6.0 MFC?????????????MFC???????BMP?????????????
???????AppWizard?????????MFC??????????ImageProcessing?
????????????File????Open??????BMP???
????????ImageProcessingView.cpp???ShowBitmap?????LoadImage??????????StretchBlt???????????
??????????OnFileOpen??????FileDialog?????????????ShowBitmap???????
??????OnDraw??????????????.bmp??????ShowBitmap???????
?????BMP?????????????????????????????????????????
???????????ImageProcessingView.h?????????????????????????????????????ReadBmp?SaveBmp???
????????ReadBmp??????fread????BMP?????????????????????????????????????
????????SaveBmp??????fwrite?????????????????????????????
????????OnDraw??????ReadBmp????????????ShowBitmap???????
????????????????????????????????????????????????
??????????ImageProcessingView.h?????????ConvertGray???OnDraw?????????
????????ConvertGray???????????????????????????????
Gray = 0.299 * R + 0.587 * G + 0.144 * BGray = (R + G + B) / 3Gray = (R * 28 + G * 151 + B * 77) >> 8????????OnDraw????????????????????????????????
????????????????????????????????????
??????????????????????Level 2?Level 4?Level 8????????????????
??????????OnLh2?OnLh4?????????????????????????Level 2????????????Level 4???????
????????OnDraw???????????????????????????????????
????????????????????????????????????
?????????????????????????????????
????????OnCy????????????????????????????????
????????OnDraw???????????????????????????????????
????????????VC++6.0 MFC?????BMP??????????????????????????????????????????????????????????
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