Abstract: Computer based method and apparatus for evaluating a graphic image file for the presence of objectionable visual content. The graphic image file comprises a number of pixels each having spectral components defined in accordance with a color model (such as RGB). Relative weighting of the spectral components of each pixel is performed to classify each pixel as either not representing human skin or as possibly representing human skin. For those sets of adjacent pixels that possibly represent human skin, a brightness test is performed to determine whether the set of pixels represents a curved surface. A statistical analysis evaluates the run length of each such set of pixels. Display of the graphic image file is allowed or disallowed based on the results of the foregoing analyses. Web pages available from the World Wide Web are further screened for objectionable terms in the associated URLs and text.

Abstract: Methods and systems of the present invention automatically and differentially detect and correct linear motion artifacts caused by camera movement and regional subject motion artifacts. Regional subject motion artifacts may be caused, for example in endoscopic or other surgery, by movement of surgical tools or the patient within the image field. Methods and systems of the present invention automatically correct for both types of motion occurring simultaneously. After an image is automatically corrected for both camera motion and regional subject motion, the image is displayed for viewing.