wpf - round robin image rotation what is the best way to do in opencv

Question

I want to do a round robin image rotation as shown below.

The x vertical line from the start of image is removed and added to the end of image.

What is the best way to do this in OpenCV, GDI++ and WPF? I need a solution for each of these platform but they could be implemented differently.

I need to implement it in a function with the following signature(for opencv)

  Mat CircShift(Mat inputImage, int PixelInXdirectionToShift);

I know how can I do this by manipulating pixels, but I am looking for a solution that do this very fast when pixel manipulation is not that fast.

Answer 1

Mat outImg(inputImg.size(),inputImg.type());
inputImg(Rect(0, 0, shiftX, height)).copyTo(outImg(Rect(width-shiftX, 0, shiftX, height)));
inputImg(Rect(shiftX, 0, width-shiftX, height)).copyTo(outImg(Rect(0, 0, width-shiftX, height)));