使用cvGet2D函数 - opencv [英] Using cvGet2D function - opencv

问题描述

Helo，
我不知道错误在哪里/我认为它与cvGet2D函数有关但在哪里错了？

Helo, I dont know where is error/ I think it is connected with cvGet2D function but where is sth wrong??

  IplImage *img = cvLoadImage("car1.jpg",0);
  CvScalar s;

  for(int i=0;i<img->height;i++)
  {
      for(int j=0;j<img->width;j++)
      {
          s = cvGet2D(img,i,j);
      }
  }

---

一段时间后有信息进程返回-1073741819< 0xC0000005>

---

After some time there is info Process returned -1073741819 <0xC0000005>

推荐答案

因为你显然是opencv的新手，拜托，你必须使用它的c ++ api，而不是弃用的c-one。

since you're obviously new to opencv, please, you must use it's c++ api, not the deprecated c-one.

cv::Mat img = cv::imread("car1.jpg", 0); // this will read a grayscale - 1channel image.
if ( img.empty() )
{
    // whaa, file not found
    return -1;
}

for(int i=0; i<img.rows; i++)
{
    for(int j=0; j<img.cols; j++)
    {
        uchar s = img.at<uchar>(i,j);
    }
}

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