1. A method for determining statistical data for pixels of an image, the pixels having a higher bit depth per band, wherein the higher bit depth per band comprises greater than 8 bits per band, the method comprising: dividing the image having pixels with the higher bit depth per band into a plurality of polygonal sections, each polygonal section including substantially homogenous features; computing statistical data for pixels within each polygonal section; and storing the statistical data with the image; wherein said computing statistical data for the pixels within each polygonal section comprises: computing a first plurality of look up tables, each look up table in the first plurality of look up tables comprising a pre-computed pixel conversion table for all bands of each pixel, and times at which the first plurality of look up tables are generated.