引言

使用MFC联合Halcon，将HDevelop中的演示结果用MFC中对话框的形式显示

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一、结果

1.1 Halcon演示结果

1.2 MFC演示结果

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二、Halcon代码

* This example program shows how to use optical_flow_mg to compute the
* optical flow in an image sequence and how to segment the optical flow.
dev_update_off ()
dev_close_window ()
* Initialize the image sequence.
read_image (Image1, 'xing/xing000')
dev_open_window_fit_image (Image1, 0, 0, -1, -1, WindowHandle)
* Set the display parameters for the vector field.
dev_set_paint (['vector_field',6,1,2])
dev_set_draw ('margin')
for I := 1 to 587 by 1* Read the current image of the image sequence.read_image (Image2, 'xing/xing' + I$'03')* Compute the optical flow.optical_flow_mg (Image1, Image2, VectorField, 'fdrig', 0.8, 1, 8, 5, 'default_parameters', 'accurate')* Segment the optical flow vector field.threshold (VectorField, Region, 1, 10000)* Display the current image of the sequence.  Note that this means that* the optical flow vectors will also be displayed at the "end" of the movement* of the objects in the image.dev_display (Image2)* Display the optical flow.dev_set_color ('yellow')dev_set_line_width (1)dev_display (VectorField)* Display the segmented optical flow.dev_set_color ('green')dev_set_line_width (3)dev_display (Region)* Copy the current image to the previous image of the sequence.copy_obj (Image2, Image1, 1, 1)
endfor

三、MFC源代码

1.头文件主要代码

public:MyAssist myassist;HTuple picture1_WindowID;// Local iconic variablesHObject  ho_Image1, ho_Image2, ho_VectorField;HObject  ho_Region;// Local control variablesHTuple  hv_WindowHandle, hv_I;
public:afx_msg void OnBnClickedButtonReadImg();

2.源文件主要代码

void CHalconMFCDlg::OnBnClickedButtonReadImg()
{// TODO: 在此添加控件通知处理程序代码CRect rect;pWnd = GetDlgItem(IDC_STATIC_ORIGINAL_IMG);picture1_WindowID = (Hlong)pWnd->m_hWnd;pWnd->GetWindowRect(&rect);//This example program shows how to use optical_flow_mg to compute the//optical flow in an image sequence and how to segment the optical flow.myassist.dev_update_off();//Initialize the image sequence.ReadImage(&ho_Image1, "xing/xing000");//myassist.dev_open_window_fit_image(ho_Image1, 0, 0, -1, -1, &hv_WindowHandle);//Set the display parameters for the vector field.if (HDevWindowStack::IsOpen())SetPaint(HDevWindowStack::GetActive(), (((HTuple("vector_field").Append(6)).Append(1)).Append(2)));if (HDevWindowStack::IsOpen())SetDraw(HDevWindowStack::GetActive(), "margin");OpenWindow(0, 0, rect.Width(), rect.Height(), picture1_WindowID, "visible", "", &hv_WindowHandle);HDevWindowStack::Push(hv_WindowHandle);DispObj(ho_Image1, HDevWindowStack::GetActive());for (hv_I = 1; hv_I <= 587; hv_I += 1){//Read the current image of the image sequence.ReadImage(&ho_Image2, "xing/xing" + (hv_I.TupleString("03")));//Compute the optical flow.OpticalFlowMg(ho_Image1, ho_Image2, &ho_VectorField, "fdrig", 0.8, 1, 8, 5, "default_parameters","accurate");//Segment the optical flow vector field.Threshold(ho_VectorField, &ho_Region, 1, 10000);//Display the current image of the sequence.  Note that this means that//the optical flow vectors will also be displayed at the "end" of the movement//of the objects in the image.if (HDevWindowStack::IsOpen())DispObj(ho_Image2, HDevWindowStack::GetActive());//Display the optical flow.if (HDevWindowStack::IsOpen())SetColor(HDevWindowStack::GetActive(), "yellow");if (HDevWindowStack::IsOpen())SetLineWidth(HDevWindowStack::GetActive(), 1);if (HDevWindowStack::IsOpen())DispObj(ho_VectorField, HDevWindowStack::GetActive());//Display the segmented optical flow.if (HDevWindowStack::IsOpen())SetColor(HDevWindowStack::GetActive(), "green");if (HDevWindowStack::IsOpen())SetLineWidth(HDevWindowStack::GetActive(), 3);if (HDevWindowStack::IsOpen())DispObj(ho_Region, HDevWindowStack::GetActive());//Copy the current image to the previous image of the sequence.CopyObj(ho_Image2, &ho_Image1, 1, 1);}
}

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总结