1. A method for establishing image processing parameters, comprising: accessing acquisition parameters for image data; identifying one or more regions of the image data; determining a signal level of each region; determining a noise level of each region; determining global image processing parameters as a function of the acquisition parameters; and establishing image processing parameters as a function of the acquisition parameters, wherein the acquisition parameters comprise one or more of an x-ray tube voltage, a pre-filtration, a focal spot size, an x-ray source to detector distance (SID), and a detector readout mode.