如何将opencv图像（8UC3）转换为char *数组

Question

我有一张RGB图像。我使用：

在opencv中加载它

Mat image;
image = imread(argv[1], CV_LOAD_IMAGE_COLOR);   // Read the file

现在我需要从图像数据创建一个uchar *数组。 我该怎么做？

Answer 1

uchar* cv::Mat::data

pointer to the data

并且不要忘记Mat实际行大小可能与width * sizeof（element）不同：

 cv::Mat::step is needed because the matrix can be a part of another matrix
 or because there can some padding space in the end of each row for a proper 
 alignment.