Method and system for texture mapping a source image to a destination image

摘要

A method for texture mapping a source image to a destination image, in an image processing system where a mapping of a point from the destination image to the source image is described by an inverse transform, comprises: mapping a filter footprint into the source image using the inverse transform to compute a mapped filter footprint; determining a line of anisotropy from the mapped filter footprint; repetitively applying a filter along the line of anisotropy to sample texel values from the source image; and filtering outputs of the repetitive filtering step to compute a pixel value for the destination image.