1. A method for analyzing images of a region of interest comprising: providing a digital image of the region of interest; processing the digital image using a digital image processor to Fourier transform the digital image; extracting spectral phase information from the Fourier transformed digital image; multiplying the spectral phase information by a spectral amplitude; and performing an inverse Fourier transform on the multiplied spectral phase information to generate an enhanced digital image, wherein the enhanced digital image provides a greater level of contrast than the digital image.