目录

准备两张图片,第二张图片较小,且是灰度图片

程序解读 

运行结果: 

OpenCV-ROI区域图像叠加

准备两张图片,第二张图片较小,且是灰度图片

opencv项目软件测试 opencv实战项目教程_#include

       

opencv项目软件测试 opencv实战项目教程_opencv项目软件测试_02

程序解读 

//-------------------------------【头文件、命名空间】-------------------------------------
//
//--------------------------------------------------------------------------
#include <opencv2\opencv.hpp>
#include <opencv2\imgproc\imgproc.hpp>
#include <iostream>
using namespace cv;
using namespace std;

//-------------------------------【全局函数声明】--------------------------------------
//
//--------------------------------------------------------------------------
bool ROI_AddImage();

int main()
{
	system("color 5E");

	if (ROI_AddImage())
	{
		cout << " ROI_AddImage " << "运行成功!" << endl;
	}

	waitKey(0);
	return 0;
}

//----------------------------------【ROI_AddImage( )函数】----------------------------------
// 函数名:ROI_AddImage()
//     描述:利用感兴趣区域ROI实现图像叠加
//----------------------------------------------------------------------------------------------
bool ROI_AddImage()
{

	//【1】读入图像
	Mat srcImage1 = imread("org.jpg");
	Mat logoImage = imread("logo.jpg");
	if (!srcImage1.data) { printf("检查,读取srcImage1错误~! \n"); return false; }
	if (!logoImage.data) { printf("检查,读取logoImage错误~! \n"); return false; }

	cout << srcImage1.rows << "  srcImage1 row" << endl;
	cout << srcImage1.cols << "  srcImage1 col" << endl;
	cout << logoImage.rows << "  logoImage row" << endl;
	cout << logoImage.cols << "  logoImage col" << endl;

	//【2】定义一个Mat类型并给其设定ROI区域
    //方法一:左上角坐标+宽+高,这里需要根据自己图片大小修改,否则会索引错误
	//Mat imageROI = srcImage1(Rect(0, 250, logoImage.cols, logoImage.rows));
	//方法二:直接取范围
	Mat imageROI = srcImage1(Range(0, 0 + logoImage.rows), Range(0, 0 + logoImage.cols));


	//【3】加载掩模(必须是灰度图)
	Mat mask = imread("logo.jpg", 0);

	//【4】将掩膜拷贝到ROI
	logoImage.copyTo(imageROI, mask);

	//【5】显示结果
	namedWindow("<1>利用ROI实现图像叠加示例窗口");
	imshow("<1>利用ROI实现图像叠加示例窗口", srcImage1);

	return true;
}

运行结果: 

opencv项目软件测试 opencv实战项目教程_Image_03