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    PROGRESS IN DIGITAL IMAGE PROCESSING, 1969

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    Author
    Baker, L. Ralph
    Burke, James J.
    Frieden, B. Roy
    Issue Date
    1970-02-01
    Keywords
    Optics.
    Image processing
    
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    Publisher
    Optical Sciences Center, University of Arizona (Tucson, Arizona)
    Rights
    Copyright © Arizona Board of Regents
    Collection Information
    This title from the Optical Sciences Technical Reports collection is made available by the College of Optical Sciences and the University Libraries, The University of Arizona. If you have questions about titles in this collection, please contact repository@u.library.arizona.edu.
    Abstract
    The results of the first complete tests of the Optical Sciences Center digital image processing facility are reported. The instrumentation for digitizing film transparencies is operating well enough to provide suitable in- puts to the computer program IMPR(C, which processes (restores) the degraded image. Some manual correction of the digital data is required (mainly for missing digits) before IMPROC can be used. Although IMPROC will be expanded and modified during future research efforts, the debugging of its present form is essentially completed. First attempts at restoration of a defocused image show contrast enhancement and edge sharpening. Current techniques for displaying the processed images, however, are slow and have a limited gray scale. The best technique to date, which uses the computer's plotter to produce nine distinguishable gray levels, requires 1 hour to produce a 100 x100 matrix of points. A CRT film display device, driven by a digital computer, is being developed to solve this problem. Current and future research efforts are described.
    Description
    QC 351 A7 no. 50
    Series/Report no.
    Optical Sciences Technical Report 50
    Collections
    Optical Sciences Technical Reports

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