A Portable Image Workstation/Transmission System

R. D. Ferrante; V. T. Tom; G. Walton

doi:10.1117/12.937261

20 November 1986 A Portable Image Workstation/Transmission System

R. D. Ferrante, V. T. Tom, G. Walton

Proceedings Volume 0707, Visual Communications and Image Processing; (1986) https://doi.org/10.1117/12.937261
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

This paper describes a PC-based workstation for the acquisition, enhancement, transmission and reception of image and text data. The system was designed to provide both ease of use and reasonable performance using IBM PC technology with a 512 X 512 monochrome frame grabber board (PCVISION). The system allows the user to annotate an image with text legends and graphics. The system utilizes some unique methods for achieving eye pleasing two pixel graphics. An image may also be enhanced in two ways: globally with look up table alterations and locally with contrast and edge enhancing operations. Performance enhancement is achieved by implementing primarily integer operations, thereby elimating floating point operations, and radically increasing the apparent processor speed. We show that designing a system for ease of use may also significantly enhance its responsiveness and speed. For example, the edge enhancement technique only allows selection of low, medium, and high levels of enhancement, simplifying user choices and speeding up process operations. In addition, all look up table enhancements are precalculated and stored, allowing the user to alter the contrast with keystroke rapidity without being concerned about the applicability of the algorithm to a particular image.

Citation Download Citation

R. D. Ferrante, V. T. Tom, and G. Walton "A Portable Image Workstation/Transmission System", Proc. SPIE 0707, Visual Communications and Image Processing, (20 November 1986); https://doi.org/10.1117/12.937261

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