If the grid is images with a scanning microscope in which the scanners are not orthogonal to each other (e.g. in the Biozentrum TissueVision) then the grid will appear non-square. We should therefore return the apparent grid angle to help with adjusting scanner angles.
If the grid is images with a scanning microscope in which the scanners are not orthogonal to each other (e.g. in the Biozentrum TissueVision) then the grid will appear non-square. We should therefore return the apparent grid angle to help with adjusting scanner angles.