Abstract: An image processing system with a quality assurance feature is disclosed for determining the quality of the images being processed. The system includes a plurality of sections operating independently and concurrently to insure reliability. One section includes calculation of a quality assurance parameter dependent on the fill factor and the compression ratio determined before and after compression respectively. A second section includes histogram hardware for generating qualified histograms representative of foreground data, and background data transitions and a comparator for detecting overlap therebetween. A third section develops a histogram parameter based on the areas of the histograms and compares this parameter to the quality assurance parameter for concurrence. The system also includes autosizing means for detecting the borders of an image using fuzzy logic.

Abstract: A large area retractable display screen for displaying video and/or color graphic images through the use of phosphorescent triad arrays being selectively activated by a limiting electric field controlled thereacross by an active matrix of fault-tolerant transistors and multiplexed front electrodes produced and supported on a flexible substrate.