opencv - cv::gemm 中的断言失败(a_size.width == len)

Question

#include <opencv2\core\core.hpp>
#include<opencv2\imgproc\imgproc.hpp>
#include<opencv2\highgui\highgui.hpp>
#include <iostream>
#include<conio.h>

using namespace cv;
using namespace std;

int main()
{
Mat im= imread("D:\\try.jpg"),newface,A;
Mat im2 = imread("D:\\project\\barc\\variables\\Eigenface.jpg");

cvtColor(im, im, CV_BGR2GRAY);
cvtColor(im2, im2, CV_BGR2GRAY);

resize(im, im, Size(48, 48));
newface = im.reshape(0, 2304);

newface.convertTo(newface, CV_32FC1);
im2.convertTo(im2, CV_32FC1);

cout << "Diff : " << newface.size() << "\t" << "channels" << newface.channels() <<  endl;
cout << "Eigen : " << im2.size() << "\t" << "channels" << im2.channels() << endl;

A = im2*newface.t();

_getch();

return 0;
}

Eigenface.jpg 的尺寸为 (9x2304)。当我与图像相乘时，我遇到了这个错误，有人能帮忙吗？

Answer 1

请检查矩阵 M1,M2M1.cols == M2.rows。如果它们不相等，则乘法是不可能的!