opencv笔记11-色彩空间转换2

图像色彩空间转换2

#include<iostream>
#include<opencv2/opencv.hpp>

using namespace std;
using namespace cv;

//图像色彩空间转换
void inrange_demo(cv::Mat& image)
{
	Mat hsv;
	cvtColor(image, hsv, COLOR_BGR2HSV);
	//提取mask
	Mat mask;
	inRange(hsv, Scalar(35,43,46), Scalar(255, 255, 255), mask);
	imshow("mask", mask);

	Mat redback = Mat::zeros(image.size(), image.type());
	redback = Scalar(40, 40, 200);
	bitwise_not(mask, mask);
	imshow("mask", mask);
	image.copyTo(redback, mask);
	imshow("roi区域提取", redback);
}

int main()
{
	string path = "C:\\Users\\四明\\Pictures\\index.jpg";
	Mat img = imread(path);
	if (img.empty())
	{
		cout << "图片加载失败！" << endl;
		return -1;
	}
	namedWindow("image", WINDOW_FREERATIO);
	imshow("image", img);
	inrange_demo(img);
	waitKey(0);
	destroyAllWindows();
	return 0;
}

renderings