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+ VC++图像处理程序设计
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‎VC++图像处理程序设计/第七章图像分割/标识物体测量面积周长/CDIB.CPP

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#include "stdafx.h"
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#include "cdib.h"
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#include "windowsx.h"
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#include "math.h"
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#define WIDTHBYTES(bits) (((bits) + 31) / 32 * 4)
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CDib::CDib()
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{
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size=0;
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}
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CDib::~CDib()
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{
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GlobalFreePtr(m_pBitmapInfo);
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}
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void CDib::LoadFile(const char* dibFileName)
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{
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strcpy(m_fileName,dibFileName);
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CFile dibFile(m_fileName, CFile::modeRead);
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dibFile.Read((void*)&bitmapFileHeader,sizeof(BITMAPFILEHEADER));
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if (bitmapFileHeader.bfType == 0x4d42)
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{
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DWORD fileLength = dibFile.GetLength();
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size = fileLength -sizeof(BITMAPFILEHEADER);
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pDib =(BYTE*)GlobalAllocPtr(GMEM_MOVEABLE, size);
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dibFile.Read((void*)pDib, size);
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dibFile.Close();
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m_pBitmapInfo = (BITMAPINFO*) pDib;
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m_pBitmapInfoHeader = (BITMAPINFOHEADER*) pDib;
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m_pRGB = (RGBQUAD*)(pDib +
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m_pBitmapInfoHeader->biSize);
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int m_numberOfColors = GetNumberOfColors();
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if (m_pBitmapInfoHeader->biClrUsed == 0)
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m_pBitmapInfoHeader->biClrUsed =
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m_numberOfColors;
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DWORD colorTableSize = m_numberOfColors *
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sizeof(RGBQUAD);
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m_pData = pDib + m_pBitmapInfoHeader->biSize
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+ colorTableSize;
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m_pBitmapInfoHeader->biSizeImage = GetSize();
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if (m_pRGB == (RGBQUAD*)m_pData) // No color table
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m_pRGB = NULL;
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m_valid = TRUE;
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}
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else
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{
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m_valid = FALSE;
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AfxMessageBox("This isn't a bitmap file!");
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}
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}
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BOOL CDib::IsValid()
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{
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return m_valid;
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}
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char* CDib::GetFileName()
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{
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return m_fileName;
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}
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UINT CDib::GetWidth()
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{
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return (UINT) m_pBitmapInfoHeader->biWidth;
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}
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UINT CDib::GetHeight()
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{
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return (UINT) m_pBitmapInfoHeader->biHeight;
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}
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DWORD CDib::GetSize()
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{
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if (m_pBitmapInfoHeader->biSizeImage != 0)
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return m_pBitmapInfoHeader->biSizeImage;
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else
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{
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DWORD height = (DWORD) GetHeight();
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DWORD width = (DWORD) GetWidth();
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return height * width;
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}
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}
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UINT CDib::GetNumberOfColors()
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{
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int numberOfColors;
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if ((m_pBitmapInfoHeader->biClrUsed == 0) &&
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(m_pBitmapInfoHeader->biBitCount < 9))
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{
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switch (m_pBitmapInfoHeader->biBitCount)
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{
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case 1: numberOfColors = 2; break;
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case 4: numberOfColors = 16; break;
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case 8: numberOfColors = 256;
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}
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}
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else
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numberOfColors = (int) m_pBitmapInfoHeader->biClrUsed;
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return numberOfColors;
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}
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BYTE* CDib::GetData()
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{
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return m_pData;
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}
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RGBQUAD* CDib::GetRGB()
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{
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return m_pRGB;
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}
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BITMAPINFO* CDib::GetInfo()
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{
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return m_pBitmapInfo;
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}
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WORD CDib::PaletteSize(LPBYTE lpDIB)
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{
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return (DIBNumColors(lpDIB) * sizeof(RGBTRIPLE));
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}
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WORD CDib::DIBNumColors(LPBYTE lpDIB)
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{
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WORD wBitCount; // DIB bit count
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wBitCount = ((LPBITMAPCOREHEADER)lpDIB)->bcBitCount;
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switch (wBitCount)
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{
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case 1:
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return 2;
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case 4:
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return 16;
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case 8:
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return 256;
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default:
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return 0;
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}
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}
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void CDib::SaveFile(const CString filename)
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{
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strcpy(m_fileName,filename);
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CFile dibFile(m_fileName, CFile::modeCreate|CFile::modeWrite);
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dibFile.Write((void*)&bitmapFileHeader,sizeof(BITMAPFILEHEADER));
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dibFile.Write((void*)pDib, size);
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dibFile.Close();
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}
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DWORD CDib::GetDibWidthBytes()
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{
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byBitCount=m_pBitmapInfoHeader->biBitCount;
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LONG nWidth=m_pBitmapInfoHeader->biWidth;
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dwWidthBytes = (DWORD)m_pBitmapInfoHeader->biWidth; //8-bits
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if(byBitCount == 1) dwWidthBytes = (nWidth + 7) / 8;
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else if(byBitCount == 4) dwWidthBytes = (nWidth + 1) / 2;
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else if(byBitCount == 24) dwWidthBytes = 3 * nWidth ;
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while((dwWidthBytes & 3) != 0)dwWidthBytes++;
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return dwWidthBytes;
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}

‎VC++图像处理程序设计/第七章图像分割/标识物体测量面积周长/Cdib.h

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#ifndef __CDIB_H
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#define __CDIB_H
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class CDib : public CObject
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{
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public:
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RGBQUAD* m_pRGB;
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BYTE *m_pData;
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UINT m_numberOfColors;
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BOOL m_valid;
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BITMAPFILEHEADER bitmapFileHeader;
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BITMAPINFOHEADER* m_pBitmapInfoHeader;
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BITMAPINFO* m_pBitmapInfo;
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BYTE* pDib;
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DWORD size;
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int byBitCount;
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DWORD dwWidthBytes;
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public:
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CDib();
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~CDib();
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char m_fileName[256];
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char* GetFileName();
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BOOL IsValid();
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DWORD GetSize();
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UINT GetWidth();
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UINT GetHeight();
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UINT GetNumberOfColors();
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RGBQUAD* GetRGB();
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BYTE* GetData();
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BITMAPINFO* GetInfo();
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WORD PaletteSize(LPBYTE lpDIB);
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WORD DIBNumColors(LPBYTE lpDIB);
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void SaveFile(const CString filename);
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public:
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DWORD GetDibWidthBytes();
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void LoadFile(const char* dibFileName);
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};
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#endif

‎VC++图像处理程序设计/第七章图像分割/标识物体测量面积周长/DELSMALL.cpp

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// DELSMALL.cpp : implementation file
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//
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#include "stdafx.h"
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#include "DSplit.h"
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#include "DELSMALL.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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/////////////////////////////////////////////////////////////////////////////
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// DELSMALL dialog
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DELSMALL::DELSMALL(CWnd* pParent /*=NULL*/)
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: CDialog(DELSMALL::IDD, pParent)
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{
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//{{AFX_DATA_INIT(DELSMALL)
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m_delsmall = 0;
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//}}AFX_DATA_INIT
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}
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void DELSMALL::DoDataExchange(CDataExchange* pDX)
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{
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CDialog::DoDataExchange(pDX);
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//{{AFX_DATA_MAP(DELSMALL)
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DDX_Text(pDX, IDC_EDITDEL, m_delsmall);
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//}}AFX_DATA_MAP
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}
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BEGIN_MESSAGE_MAP(DELSMALL, CDialog)
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//{{AFX_MSG_MAP(DELSMALL)
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// NOTE: the ClassWizard will add message map macros here
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//}}AFX_MSG_MAP
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END_MESSAGE_MAP()
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/////////////////////////////////////////////////////////////////////////////
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// DELSMALL message handlers

‎VC++图像处理程序设计/第七章图像分割/标识物体测量面积周长/DELSMALL.h

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#if !defined(AFX_DELSMALL_H__D42AF56A_17EC_4054_A131_CD4A30604464__INCLUDED_)
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#define AFX_DELSMALL_H__D42AF56A_17EC_4054_A131_CD4A30604464__INCLUDED_
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#if _MSC_VER > 1000
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#pragma once
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#endif // _MSC_VER > 1000
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// DELSMALL.h : header file
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//
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/////////////////////////////////////////////////////////////////////////////
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// DELSMALL dialog
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class DELSMALL : public CDialog
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{
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// Construction
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public:
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DELSMALL(CWnd* pParent = NULL); // standard constructor
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// Dialog Data
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//{{AFX_DATA(DELSMALL)
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enum { IDD = IDD_DELSMALL_DLG };
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int m_delsmall;
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//}}AFX_DATA
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// Overrides
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// ClassWizard generated virtual function overrides
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//{{AFX_VIRTUAL(DELSMALL)
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protected:
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virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
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//}}AFX_VIRTUAL
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// Implementation
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protected:
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// Generated message map functions
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//{{AFX_MSG(DELSMALL)
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// NOTE: the ClassWizard will add member functions here
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//}}AFX_MSG
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DECLARE_MESSAGE_MAP()
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};
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//{{AFX_INSERT_LOCATION}}
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// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
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#endif // !defined(AFX_DELSMALL_H__D42AF56A_17EC_4054_A131_CD4A30604464__INCLUDED_)

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