Switching Median Filter for Image Enhancement
نویسنده
چکیده
In this paper, a new nonlinear f iltering technique is introduced for enhancement of images that are highly contaminated by impulse noise. The proposed filtering technique is more effective in eliminating impulse noise and preserving the image features. The f ilter replaces a corrupted pixel by the median value or by its processed neighboring pixel value. The uncorrupted pixels are left undisturbed. Simulation studies show that the proposed filter can eliminate impulse noise of densities up to 70% while preserving the edges and f ine details satisfactorily. The performance of the f ilter is evaluated by applying it on different test images and the results obtained are presented.
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