How to extract a row of Mat matrix into a new one

Question

Assuming a Mat img(512,512,CV_32F), then how to put a specific row, say 10th, in img into another mat, say img_r10, of the same type? Are there relevant functions to do that?

Something like [`cv::Mat::row`](https://docs.opencv.org/4.1.0/d3/d63/classcv_1_1Mat.html#a4b22e1c23af7a7f2eef8fa478cfa7434)? :) — Dan Mašek, May 05 '19 at 15:28

score 0 · Answer 1 · answered May 05 '19 at 15:33

Using the block access method (Table 4-7 in Learn Opencv 3 https://www.oreilly.com/library/view/learning-opencv-3/9781491937983/ch04.html) of cv::Mat, that is cv::Mat::row here.

Similar posts are found here: Copy select rows into new matrix and https://answers.opencv.org/question/2139/extract-specified-row-from-cvmat/

How to extract a row of Mat matrix into a new one

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