Nonlinear Image Transformations Implemented With Spatial Light Modulators

    Authors

    A. R. Weeks; H. R. Myler;J. D. Emery

    Comments

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    Abbreviated Journal Title

    Opt. Eng.

    Keywords

    IMAGE PROCESSING; OPTICAL COMPUTING; OPTICAL PROCESSING; INFORMATION; PROCESSING; SPATIAL LIGHT MODULATORS; OPTICAL NONLINEAR GRAY-LEVEL; TRANSFORMATIONS; LIQUID-CRYSTAL TELEVISION; Optics

    Abstract

    A technique for optically implementing nonlinear gray-level transformations on images via a spatial light modulator (SLM) coupled to a computer image-processing system is presented. Both the exponential and the logarithmic functions are implemented. The only restriction in the choice of nonlinear transformations is that they must lie below the SLM's linear intensity output versus intensity input curve obtained with the SLM set to a full transmittance.

    Journal Title

    Optical Engineering

    Volume

    33

    Issue/Number

    3

    Publication Date

    1-1-1995

    Document Type

    Article

    Language

    English

    First Page

    850

    Last Page

    855

    WOS Identifier

    WOS:A1994NA36000027

    ISSN

    0091-3286

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