c++ - OpenCV3.1 中的 imwrite 不起作用

Question

当我尝试使用 imwrite 保存图像时出现以下错误:

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  C:\Users\jalal\AppData\Local\Temp\WER70C2.tmp.mdmp

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这是我的全部代码(代码有效——imshow 显示模糊图像):

#include <opencv2/core/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui/highgui.hpp>

#include <iostream>
#include <string>

using namespace cv;
using namespace std;

//void tintImageBlue(Mat& image);

int main()
{
    Mat image;
    Mat channels[3];

    image = imread("mona1.jpg", IMREAD_GRAYSCALE);
    split(image, channels);
    //image = 0.2*channels[0] + 0.4*channels[1] + 0.4*channels[2]; //gives us a black and white image (grey)
    image = 0.2126*channels[0] + 0.7152*channels[1] + 0.0722*channels[2]; //wikipedia formula 
    //Colorimetric (luminance-preserving) conversion to grayscale



    if (image.empty())                      // Check for invalid input
    {
        cout << "Could not open or find the image" << std::endl;
        return 0;
    }

    float neighbors[8];
    float neighbors_mean = 0;
    float neighbors_sum;

    for (int iter = 0; iter < 3; iter++){
        for (int i = 0; i < image.rows; i++) {
            for (int j = 0; j < image.cols; j++) {


                neighbors[0] = (((i - 1) >= 0 && (j - 1) >= 0) ? image.at<uchar>(i - 1, j - 1) : 0.0f);
                neighbors[1] = (((i - 1) >= 0) ? image.at<uchar>(i - 1, j) : 0.0f);
                neighbors[2] = (((i - 1) >= 0 && (j + 1) < image.cols) ? image.at<uchar>(i - 1, j + 1) : 0.0f);
                neighbors[3] = (((j + 1) < image.cols) ? image.at<uchar>(i, j + 1) : 0.0f);
                neighbors[4] = (((i + 1) < image.rows && (j + 1) < image.cols) ? image.at<uchar>(i + 1, j + 1) : 0.0f);
                neighbors[5] = (((i + 1) < image.rows && (j - 1) >= 0) ? image.at<uchar>(i + 1, j) : 0.0f);
                neighbors[6] = (((i + 1) < image.rows && (j - 1) >= 0) ? image.at<uchar>(i + 1, j - 1) : 0.0f);
                neighbors[7] = (((j - 1) >= 0) ? image.at<uchar>(i, j - 1) : 0.0f);

                neighbors_sum = neighbors[0] + neighbors[1] + neighbors[2] + neighbors[3] +
                    neighbors[4] + neighbors[5] + neighbors[6] + neighbors[7];

                neighbors_mean = neighbors_sum / 8.0f;
                image.at<uchar>(i, j) = neighbors_mean;


                neighbors_sum = 0;
                neighbors_mean = 0;

            }
        }
    }












    //tintImageBlue(image);

    //namedWindow("Grey Mona", WINDOW_AUTOSIZE); // Create a window for display.
    //imshow("Grey Mona", image);                // Show our image inside it.

    //resizeWindow("Grey Mona",800, 1000);

    //waitKey(0); // Wait for a keystroke in the window
    imwrite("10_iteration_blurring.jpg", image);
    return 0;
}

但是使用 imwrite 它变得没有响应。我应该如何解决这个问题？

Answer 1

这对我有用:

 imwrite("10_iteration_blurring.bmp", image);