Question: Need help moving from OpenCV to GammaCV

[mariusbolik]

Thank you for creating this awesome Library! Currently I am moving my code from OpenCV to Gamma CV. It looks promising so far. But I have one litte step left to archive the same result like in OpenCV. I am using Coordinates to extract an sheet of paper out of an image. There is a margin given in the Coords that needs to be added on top and bottom to the paper, like you see in this image:

Could someone please assist adding the margins so the result is like in OpenCV?
Demo Code: https://github.com/mariusbolik/opencv-to-gammacv

Kind regards,
Marius