How to make Nine Miyagi Lattice Image by C++ OpenCV

Today, the editor would like to share with you the relevant knowledge points about how C++ OpenCV produces images of Nine Miyagi grid. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's learn about it together.

I. Nine palace grid images

The original picture is shown in the picture. The demand of this case is to divide the image into nine equal parts and make the image of Nine Palace Grid. First of all, the original picture must be equally divided into nine parts.

As shown in the figure. Divide the original image into nine equal parts, and then copy each square to the new image at regular intervals (nine grid effects). For specific algorithm ideas, please see the source code comments.

Source code # include#includeusing namespace std;using namespace cv;int main () {Mat src = imread ("test.jpg"); if (src.empty ()) {cout