摄像头图像采集程序与分析
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打开摄像头：
case IDM_OPENCAMERA:
if(capDriverConnect(hwndCap, 0)==TRUE)
{
capDriverGetCaps(hwndCap , &CapDriver ,sizeof (CAPDRIVERCAPS) );
if (CapDriver.fHasOverlay)
capOverlay(hwndCap ,TRUE);
else
{
capPreviewRate(hwndCap ,66) ;
capPreview(hwndCap, TRUE) ;
}
}
else {
MessageBox(hwndCap,"打开摄像头错误！\n 确定摄像头是否已连接","错误
",MB_OK);
}break;
//采集，捕捉摄像头单帧图像
case IDM_CAPTUREIMG:
capGrabFrame( hwndCap);
break;
//保存摄像头采集的图片
case IDM_CAPIMGSA VE:
MenuOpenDlg(hwnd,"视频采集保存对话框","save");
capFileSaveDIB(hwndCap,TempName);
break;
//VideoCapture.cpp
#include
#include
#include
#include
#include "VideoCapture.h"
#include "resource.h"
char TempName[256];
HWND hwndCap;
HWND hwndSetCapStutas;
CAPDRIVERCAPS CapDriver;
CAPSTATUS CapStat;
2 / 17
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
{
if(DialogBox(hInstance,(LPCSTR)IDD_DIALOG1,NULL,DlgProc)==-1) MessageBox(NULL,"对话框建立错误！","错误",MB_OK);
return 0;
}
BOOL CALLBACK DlgProc(HWND hdlg,UINT message,WPARAM wParam,LPARAM
lParam)
{
RECT rect;
switch(message)
{
case WM_INITDIALOG:
GetWindowRect(hdlg,&rect);
hwndCap =capCreateCaptureWindow(" 人脸录入" ,WS_CHILD|
WS_VISIBLE,30,20,320,240,hdlg ,0);
return FALSE;
case WM_COMMAND :
switch (LOWORD (wParam))
{
case IDOK :
if(capDriverConnect(hwndCap, 0)==TRUE)
{
capDriverGetCaps(hwndCap , &CapDriver ,sizeof (CAPDRIVERCAPS) );
if (CapDriver.fHasOverlay)
capOverlay(hwndCap ,TRUE);
else
{
capPreviewRate (hwndCap ,66) ;
capPreview(hwndCap, TRUE) ;
}
}
else
MessageBox(hdlg,"采集图像错误","提示",MB_OK);
return 0;
break;
case IDC_BUTTON1: 3 / 17
if(CapDriver.fHasDlgVideoSource)
capDlgVideoSource(hwndCap);
break;
case IDC_BUTTON2:
MessageBox(hdlg,"作者：Steward\n地址：云南大学信息学院","关于作者",MB_OK);
break;
case IDC_BUTTON3:
capGrabFrame( hwndCap);
break;
case IDC_BUTTON4:
MenuOpenDlg(hdlg,"视频采集保存对话框");
capFileSaveDIB(hwndCap,TempName);
break;
case IDCANCEL :
capCaptureStop(hwndCap);
capDriverDisconnect (hwndCap);
EndDialog (hdlg, 0) ;
return TRUE ;
}
break ;
}
return FALSE ;
}
void MenuOpenDlg(HWND hWnd,char *str1)
{
OPENFILENAME OpenTemp;
DWORD Errval,error;