GreyDlg.cpp
资源名称:vcc.rar [点击查看]
上传用户:cdscwht
上传日期:2022-07-27
资源大小:264k
文件大小:2k
源码类别:
图形/文字识别
开发平台:
Visual Basic
- // GreyDlg.cpp : implementation file
- //
- #include "stdafx.h"
- #include "dip.h"
- #include "GreyDlg.h"
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- /////////////////////////////////////////////////////////////////////////////
- // CGreyDlg dialog
- CGreyDlg::CGreyDlg(CWnd* pParent /*=NULL*/)
- : CDialog(CGreyDlg::IDD, pParent)
- {
- //{{AFX_DATA_INIT(CGreyDlg)
- // NOTE: the ClassWizard will add member initialization here
- //}}AFX_DATA_INIT
- int i;
- for(i=0;i<256;i++)
- grey[i]=0;
- }
- void CGreyDlg::DoDataExchange(CDataExchange* pDX)
- {
- CDialog::DoDataExchange(pDX);
- //{{AFX_DATA_MAP(CGreyDlg)
- // NOTE: the ClassWizard will add DDX and DDV calls here
- //}}AFX_DATA_MAP
- }
- BEGIN_MESSAGE_MAP(CGreyDlg, CDialog)
- //{{AFX_MSG_MAP(CGreyDlg)
- ON_WM_PAINT()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CGreyDlg message handlers
- int CGreyDlg::DoModal()
- {
- // TODO: Add your specialized code here and/or call the base class
- return CDialog::DoModal();
- }
- void CGreyDlg::OnPaint()
- {
- CPaintDC dc(this); // device context for painting
- // TODO: Add your message handler code here
- //显示背景框
- dc.Rectangle(10,10,300,400);
- int i;
- LONG greymax=0;
- for(i=0;i<256;i++)
- {
- if (grey[i]>greymax) greymax=grey[i];
- }
- //显示灰度直方图
- dc.MoveTo(283,395-int(grey[0]*1.0/greymax*380));
- for(i=1;i<256;i++)
- {
- dc.LineTo(283-i,395-int(grey[i]*1.0/greymax*380));
- dc.MoveTo(283-i,395-int(grey[i]*1.0/greymax*380));
- }
- // Do not call CDialog::OnPaint() for painting messages
- }
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