UW-Madison ECE 533 - Adaptive Median Filtering of Still Images

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Adaptive Median filtering of Still ImagesIntroductionImplementationResultsAdaptive median OutputWith Non-impulsive noiseAdaptive Median OutputWith both types of noiseAdaptive Median outputConclusionsAdaptive Median filtering of Adaptive Median filtering of Still ImagesStill ImagesArjun ArunachalamArjun ArunachalamShyam BharatShyam BharatDepartment of Electrical EngineeringDepartment of Electrical EngineeringIntroductionIntroductionRemoves Impulse noise and Reduces Distortion along the Removes Impulse noise and Reduces Distortion along the boundariesboundariesWindow size is variable to improve efficiencyWindow size is variable to improve efficiencyRemoves Salt and Pepper noiseRemoves Salt and Pepper noiseSmoothens non-impulsive noiseSmoothens non-impulsive noiseImplementationImplementationThree cases were implemented:Three cases were implemented:With Salt and Pepper noise aloneWith Salt and Pepper noise aloneWith non impulsive noise aloneWith non impulsive noise aloneWith both includedWith both includedVariations in the window size were introducedVariations in the window size were introducedVariations in the noise power were introducedVariations in the noise power were introducedResultsResultsSalt and Pepper Standard Median outputAdaptive median OutputAdaptive median OutputWith Non-impulsive noiseWith Non-impulsive noiseGaussian Noise Standard Median outputAdaptive Median OutputAdaptive Median OutputWith both types of noiseWith both types of noiseGaussian and impulsive Noise Standard Median outputAdaptive Median outputAdaptive Median outputConclusionsConclusionsThe adaptive median filter successfully The adaptive median filter successfully removes impulsive noise from images. It removes impulsive noise from images. It does a reasonably good job of smoothening does a reasonably good job of smoothening images that contain non-impulsive noise. images that contain non-impulsive noise. When both types of noise are present, the When both types of noise are present, the algorithm is not as successful in removing algorithm is not as successful in removing impulsive noise and its performance impulsive noise and its performance deteriorates. deteriorates. Overall, the performance is as expected and Overall, the performance is as expected and the successful implementation of the the successful implementation of the adaptive median filter is presented.adaptive median filter is


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UW-Madison ECE 533 - Adaptive Median Filtering of Still Images

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