1. A method for identifying an object of interest in an image comprising background pixels and foreground pixels, said background pixels including pixels of a first color, the method comprising: extracting the foreground pixels from the image; identifying a region among the foreground pixels; if an area of the region is greater than a first area threshold and if a ratio of pixels of the first color in the region is less than or equal to a first color pixel ratio threshold, processing the region to produce a skeleton; and if elongation of the skeleton is smaller than an elongation threshold, determining the region as the object of interest.