Adaptive Filter Techniques For Digital Image Enhancement

Victor T. Tom

doi:10.1117/12.946405

22 July 1985 Adaptive Filter Techniques For Digital Image Enhancement

Victor T. Tom

Proceedings Volume 0528, Digital Image Processing; (1985) https://doi.org/10.1117/12.946405
Event: 1985 Los Angeles Technical Symposium, 1985, Los Angeles, United States

Abstract

A survey of several adaptive techniques for image enhancement and filtering is presented under a com-mon framework. With the proliferation high-speed processors, such as array and image display processors, the increased computational power has shifted emphasis in image processing away from "global" to "local" techniques. These local techniques frequently use sliding windows which compute local properties of the image. These properties, in turn, are used to locally control the enhancement or filter applied to the image. The types of operations discussed encompass contrast, edge or information enhancment, noise or artifact reduction, and feature extraction or removal. Algorithmic implementations include real-time con-trast enhancement filters, zonal filters, short-space FFT filters, and a multi-dimensional adaptive least-squares technique. In this review paper, an adaptive frame-work, discussions on various enhancement approaches, and an extensive bibliography are presented.

Citation Download Citation

Victor T. Tom "Adaptive Filter Techniques For Digital Image Enhancement", Proc. SPIE 0528, Digital Image Processing, (22 July 1985); https://doi.org/10.1117/12.946405

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