OpenCV学习-获取图像的像素和通道数

Posted 2021-06-29 殇堼

#include <opencv2\\opencv.hpp>
#include<iostream>
using namespace cv;
using namespace std;

int main(int arc, char**argc){
	Mat a;
	a = imread("D:/images/gaoyy.png");
	if (a.empty()) {
		printf("could not find the picture!");
		return-1;
	}
	
	//计算图像尺寸和通道数
	int height = a.rows;
	int width = a.cols;
	int channels = a.channels();
	printf("height=%d width=%d channels=%d", height, width, channels);
	
	imshow("image", a);
	waitKey(0);
	return 0;
}