1. A method for image processing, said method comprising: in a computing device: determining luminance values of a plurality of pixels in a subset of a frame of a two-dimensional image; determining texture values of said plurality of pixels in said subset of said frame; and identifying a subject region and a background region in said frame of said two-dimensional image based on said determined luminance values and said determined texture values of said plurality of pixels, wherein said identification of said subject region and said background region in said frame of said two-dimensional image comprises classifying said plurality of pixels into a first class and/or a second class based on a comparison of said luminance values and said texture values of said plurality of pixels with a first set of lookup tables and a second set of lookup tables respectively.