Adaptive Filter Techniques For Digital Image Enhancement

摘要: 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 display increased computational power has shifted emphasis in processing away from "global" to "local" techniques. These local frequently use sliding windows which compute properties image. properties, turn, are used locally control or filter applied The types operations discussed encompass contrast, edge information enhancment, noise artifact reduction, feature extraction removal. Algorithmic implementations include real-time con-trast filters, zonal short-space FFT multi-dimensional least-squares technique. In this review paper, an frame-work, discussions on various approaches, extensive bibliography presented.