Image Processing

Digital Grain Reduction Tools - A Comparison: This article illustrates the results that can be achieved using digital grain reduction image processing tools. Tools that are evaluated include; Adobe's - Photoshop Smart Blur, Neat Image's - Neat Image, Pleiades-Astrophoto's - SGBNR, and Visual Infinity's - Grain Surgery.

Image Stacking - An Illustration: This article illustrates the benefits of photographic image stacking to achieve higher signal to noise ratio than can be achieved by a single exposure of less duration. "Summing" or "Averaging" a number of short exposure images can effectively produce signal equal to long individual images, while dramatically reducing noise associated with short CCD exposures or grainy film images.