如标题所言,此处是对于灰度图像而言
///method 1 read the image data one by one for (int row = 0, i = 0;row < imgDst.rows;row++) { for (int col = 0;col < imgDst.cols;col++) { cout << setw(3) << (int)imgDst.at<uchar>(row, col) << " "; arr[i] =imgDst.at<uchar>(row, col) ; //cout << (int)arr[i] << " "; i++; } cout << endl; } //test to print for (int q = 0;q < imgDst.rows;q++) { for (int k = 0;k < imgDst.cols;k++) { int pos = q*imgDst.cols + k; cout << setw(3) << (int)arr[pos] << " "; } cout << endl; }
///method 2 memcpy the image data to uchar arr in rows unsigned char *imgData = new unsigned char[vec_Num];//直接将图像数据拷贝到数组中; memcpy(imgData, imgDst.data, imgDst.rows*imgDst.cols*sizeof(unsigned char)); for (int i = 0;i < vec_Num;i++) { arr[i] = (float)(imgData[i])/255; } //test to print for (int q = 0;q < imgDst.rows;q++) { for (int k = 0;k < imgDst.cols;k++) { int pos = q*imgDst.cols + k; cout << setw(3) << (int)arr[pos] << " "; } cout << endl; } cout << endl;
原文链接: https://www.cnblogs.com/xiaopanlyu/p/5335061.html
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