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   源码介绍

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// MFCApplication1Dlg.cpp: 实现文件
//

#include "pch.h"
#include "framework.h"
#include "MFCApplication1.h"
#include "MFCApplication1Dlg.h"
#include "afxdialogex.h"



#include <iostream>
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/imgproc/imgproc_c.h"
#include "opencv2/core/core.hpp"
#include "opencv2/objdetect/objdetect.hpp"
#include <opencv2/face.hpp>

#include <opencv2/xfeatures2d.hpp>

#include "opencv2/opencv.hpp"
#include <math.h>
#include<direct.h>
#include<io.h>
#include<sstream>


#include "string"


#ifdef _DEBUG
#define new DEBUG_NEW
#endif


using namespace std;
using namespace cv;
using namespace cv::face;
using namespace cv::xfeatures2d;

CFont font, font1;
char c;



// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialogEx
{
public:
	CAboutDlg();

	// 对话框数据
#ifdef AFX_DESIGN_TIME
	enum { IDD = IDD_ABOUTBOX };
#endif

protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()


// CMFCApplication1Dlg 对话框



CMFCApplication1Dlg::CMFCApplication1Dlg(CWnd* pParent /*=nullptr*/)
	: CDialogEx(IDD_MFCAPPLICATION1_DIALOG, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMFCApplication1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);


}

BEGIN_MESSAGE_MAP(CMFCApplication1Dlg, CDialogEx)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, &CMFCApplication1Dlg::OnBnClickedButton1)
	ON_BN_CLICKED(IDC_BUTTON6, &CMFCApplication1Dlg::OnBnClickedButton6)


END_MESSAGE_MAP()


// CMFCApplication1Dlg 消息处理程序

BOOL CMFCApplication1Dlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();

	// 将“关于...”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != nullptr)
	{
		BOOL bNameValid;
		CString strAboutMenu;
		bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
		ASSERT(bNameValid);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 设置此对话框的图标。  当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	ShowWindow(SW_MAXIMIZE);

	ShowWindow(SW_MINIMIZE);

	// TODO: 在此添加额外的初始化代码
	//CFont font;
	font.CreatePointFont(200, _T("宋体"), NULL);
	font1.CreatePointFont(150, _T("宋体"), NULL);
	GetDlgItem(IDC_BUTTON1)->SetFont(&font);
	GetDlgItem(IDC_BUTTON6)->SetFont(&font);
	GetDlgItem(IDC_STATIC12)->SetFont(&font1);
	GetDlgItem(IDC_STATIC13)->SetFont(&font1);
	return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}

void CMFCApplication1Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialogEx::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。  对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CMFCApplication1Dlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作区矩形中居中
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon   1) / 2;
		int y = (rect.Height() - cyIcon   1) / 2;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialogEx::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标
//显示。
HCURSOR CMFCApplication1Dlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}


CWinThread* pWinThread_CompositeVideo;//创建线程


string convertToString(double d) {
	ostringstream os;
	if (os << d)
		return os.str();
	return "invalid conversion";
}


UINT CMFCApplication1Dlg::CompositeVideo(LPVOID pParam)//**************************************************************合成视频线程函数******************************************************************************************
{
	CMFCApplication1Dlg * dlgR = (CMFCApplication1Dlg *)pParam;
	// TODO:  在此添加控件通知处理程序代码

	//绿幕抠图
	VideoWriter writer;
	//writer.open("./my1.AVI", writer.fourcc('M', 'J', 'P', 'G'), 10, Size(1366,768), true);//CAP_OPENCV_MJPEG
	writer.open("./my1.flv", writer.fourcc('F', 'L', 'V', '1'), 30, Size(1366, 768), true);//CAP_OPENCV_MJPEG

	Mat background_01 = imread("D:/OpenCV_program/绿幕抠图/1.jpg");
	Mat background_02 = imread("D:/OpenCV_program/绿幕抠图/2.jpg");
	Mat background_03 = imread("D:/OpenCV_program/绿幕抠图/3.jpg");
	Mat background_04 = imread("D:/OpenCV_program/绿幕抠图/4.jpg");
	Mat background = background_01;
	int width = background.cols;
	int height = background.rows;
	VideoCapture capture, capture_TV;
	capture.open("./胆小的猫.flv");
	capture_TV.open("./跳舞.mp4");
	if ((!capture.isOpened()) || (!capture_TV.isOpened()))
	{
		return -1;
	}

	Mat frame, hsv, green_mask, green_mask_bin, mask, result;
	Mat k, k0;
	int m = 0;
	int h, w, dims;
	int r = 0, g = 0, b = 0;
	int r1 = 0, g1 = 0, b1 = 0;
	int r2 = 0, g2 = 0, b2 = 0;
	double wt = 0;
	vector<Vec4i> hierarchy;
	vector<vector<Point> > contours;
	while (capture.read(frame))
	{
		mask = Mat::zeros(frame.size(), CV_8UC1);
		result = Mat::zeros(frame.size(), frame.type());
		//寻找绿幕
		cvtColor(frame, hsv, COLOR_BGR2HSV);
		inRange(hsv, Scalar(35, 43, 46), Scalar(77, 255, 255), green_mask);//大范围的绿色
		//inRange(hsv, Scalar(50, 200, 200), Scalar(70, 255, 255), green_mask);//本素材的绿色
		//imshow("green_mask", green_mask);
		// 开操作
		//k0 = getStructuringElement(MORPH_RECT, Size(5, 5), Point(-1, -1));
		//morphologyEx(green_mask, green_mask, MORPH_OPEN, k0);
		// 闭操作，去掉mask杂点
		//k = getStructuringElement(MORPH_RECT, Size(3, 3), Point(-1, -1));
		//morphologyEx(green_mask, green_mask, MORPH_CLOSE, k);
		//mask二值化
		threshold(green_mask, green_mask_bin, 200, 255, THRESH_BINARY);
		//寻找轮廓
		findContours(green_mask_bin, contours, hierarchy, RETR_TREE, CHAIN_APPROX_NONE, Point(0, 0));

		//筛选剔除掉面积小于290000或大于320000的轮廓
		vector <vector<Point>>::iterator iter = contours.begin();
		for (; iter != contours.end();)
		{
			double g_dConArea = contourArea(*iter);
			if (g_dConArea < 290000 || g_dConArea > 320000)
			{
				iter = contours.erase(iter);
			}
			else
			{
				  iter;
			}
		}

		if (contours.size() == 0)
		{
			frame.copyTo(result);

			imshow("ImageShow2", frame);
			imshow("ImageShow", result);
			writer.write(result);

		}
		else
		{
			capture_TV.read(background);
			drawContours(mask, contours, -1, Scalar(255), CV_FILLED);  

			for (int i = 0; i < (int)contours.size(); i  )
			{
				Rect rect1 = boundingRect(Mat(contours[i]));//最小外接矩

				resize(background, background, rect1.size());//调整图像大小

				//融合
				h = frame.rows;
				w = frame.cols;
				//int bg_row = 0;
				//dims = frame.channels();
				for (int row = 0; row < h; row  )
				{
					uchar* current = frame.ptr<uchar>(row);
					//uchar* bgrow = background.ptr<uchar>(bg_row);
					uchar* maskrow = mask.ptr<uchar>(row);
					uchar* targetrow = result.ptr<uchar>(row);
					for (int col = 0; col < w; col  )
					{
						m = *maskrow  ;
						if (m == 255)
						{ // 背景
							*targetrow   = background.at<Vec3b>(row - rect1.y, col - rect1.x)[0];
							*targetrow   = background.at<Vec3b>(row - rect1.y, col - rect1.x)[1];
							*targetrow   = background.at<Vec3b>(row - rect1.y, col - rect1.x)[2];
							current  = 3;

						}
						else if (m == 0)
						{// 前景
							*targetrow   = *current  ;
							*targetrow   = *current  ;
							*targetrow   = *current  ;
						}
					}
				}
			}

			imshow("ImageShow2", frame);
			imshow("ImageShow1", background);
			imshow("ImageShow", result);
			writer.write(result);
			//waitKey();

		}
		//c = waitKey(1);
		if (c == 27) {
			break;
		}

	}

	waitKey(0);

	return 0;

}



void CMFCApplication1Dlg::OnBnClickedButton1()//开始
{
	// TODO: 在此添加控件通知处理程序代码
	int idx, n;
	Rect maxrect, brect;
	////////////////////////////////设置窗口////////////////////////////////////////////////////////////////////
		//窗口0
	CRect cWindowRect;
	GetDlgItem(IDC_STATIC)->GetClientRect(&cWindowRect);       // 获取控件窗口大小
	namedWindow("ImageShow", CV_WINDOW_KEEPRATIO);          // 用OpenCV创建一个窗口
	resizeWindow("ImageShow", cWindowRect.Width(), cWindowRect.Height());
	HWND hWnd = (HWND)cvGetWindowHandle("ImageShow");
	HWND hParent = ::GetParent(hWnd);
	::SetParent(hWnd, GetDlgItem(IDC_STATIC)->m_hWnd);
	::ShowWindow(hParent, SW_HIDE);

	Mat pic;
	pic = imread("D:/OpenCV_program/绿幕抠图/截图/image1.png");
	imshow("ImageShow", pic);



	//窗口1	
	CRect cWindowRect2;
	GetDlgItem(IDC_STATIC1)->GetClientRect(&cWindowRect2);       // 获取控件窗口大小
	namedWindow("ImageShow2", CV_WINDOW_KEEPRATIO);          // 用OpenCV创建一个窗口
	resizeWindow("ImageShow2", cWindowRect2.Width(), cWindowRect2.Height());
	HWND hWnd2 = (HWND)cvGetWindowHandle("ImageShow2");
	HWND hParent2 = ::GetParent(hWnd2);
	::SetParent(hWnd2, GetDlgItem(IDC_STATIC1)->m_hWnd);
	::ShowWindow(hParent2, SW_HIDE);

	Mat pic2;
	pic2 = imread("D:/OpenCV_program/绿幕抠图/截图/image1.png");
	imshow("ImageShow2", pic2);


	//窗口2
	CRect cWindowRect1;
	GetDlgItem(IDC_STATIC2)->GetClientRect(&cWindowRect1);       // 获取控件窗口大小
	namedWindow("ImageShow1", CV_WINDOW_KEEPRATIO);          // 用OpenCV创建一个窗口
	resizeWindow("ImageShow1", cWindowRect1.Width(), cWindowRect1.Height());
	HWND hWnd1 = (HWND)cvGetWindowHandle("ImageShow1");
	HWND hParent1 = ::GetParent(hWnd1);
	::SetParent(hWnd1, GetDlgItem(IDC_STATIC2)->m_hWnd);
	::ShowWindow(hParent1, SW_HIDE);

	Mat pic1;
	pic1 = imread("D:/OpenCV_program/绿幕抠图/截图/image3.png");
	imshow("ImageShow1", pic1);


	pWinThread_CompositeVideo = AfxBeginThread(CompositeVideo, this);//启动线程

}



void CMFCApplication1Dlg::OnBnClickedButton6()//结束
{
	// TODO: 在此添加控件通知处理程序代码
	c = 27;
}