I see many references to R" indicates the primitive operates only on a rectangular “region-of-interest” or “ROI”. All ROI primitives take an additional input parameter of type NppiSize, which specifies the width and height of the rectangular region that the primitive should process. For details on how primitives operate on ROIs see: Region-of-Interest (ROI).
I can’t seem to find a simple API that extracts an ROI from a linear pitch image though.
Any help would be appreciated.