1. A method of automatically generating one or more new images using an original image, comprising: acquiring one or more reference images that are temporally or spatially related to the original image; determining sums of high-order DCT coefficients of one or more regions of the one or more reference images; determining sums of high-order DCT coefficients of one or more regions in the original image; performing comparisons of the sums of high-order DCT coefficients of one or more regions in the original image with the sums of high-order DCT coefficients of one or more regions of the one or more reference images: based, at least in part, on the performed comparisons, automatically detecting and selecting, within a digital image acquisition device, one or more groups of pixels that correspond to a background region or a foreground region, or both within the original image; and automatically generating values of pixels of one or more new images based on the selected one or more groups of pixels from the original image to cause the background region or foreground region, or both to be present in the one or more new images.