1. A method for automatically modifying the rendering of an radiographic image based on an analysis of pixel values within a selected region of interest comprising: providing a digital input radiographic image of digital pixel values and tone scale look-up- table LUT; creating a default rendered image by applying the tone scale lookup table to the input image; displaying the default rendered image; selecting a region of interest from the input image; computing the histogram of the pixel values within the region of interest; creating a bright light image by remapping the pixel values within the region of interest based on an analysis of the histogram and the tone scale table, wherein the tone scale table has been adjusted by one or more of: (1) increasing or decreasing the overall contrast by changing the slope of the input tone scale LUT by rotating the tone scale LUT about a central index point of the input tone scale LUT by means of a single rotation process; and (2) increasing or decreasing the overall brightness by shifting the tone scale relative to the region of interest histogram; and overlaying the bright light image on the default rendered image.