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### findchessboardCorners result

Hi!

I have a chessboard where its height equal to its width, and I need to know how to change for example a recognized chessboard let's say a 3 rows to 3 columns, here a an example of a code a the result it may help you understanding my question :

int main () {
cv::Mat frame;
cv::Size board(3,3);
cv::vector<cv::Point2f> imageCorners;
cv::VideoCapture cap (0);
int key =0;

while(key != 27){
cap >> frame;