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In this paper a reconfigurable hardware architecture of vector median filter (VMF) and Entropy vector median filter (EVMF) is proposed and their performance on removing impulse noise from color images is presented. Performance of the filters is measured using MATLAB 2012.a simulation tools and the hardware architecture is designed using Xilinx system generator tool supported by xlSgRoot library for...
Noise detection and its removal is very important in digital image processing. In this paper an Adaptive Decision based filtering method is proposed for removing impulse noise mainly salt & pepper noise. The proposed algorithm first detect the noisy pixel, then filtering is done using decision based algorithm. The filter works very well on removing fixed valued impulse noise. With little increase...
This paper presents the implementation of the novel FIR filter with the filter architecture using shift and add multiplier. The designed is compared to the previous novel FIR designs such as Direct form and previous shift add architecture in Direct form and Transposed form. The design is done on the Transposed structure form of FIR as it is desirable in low power applications. The filters are optimized...
A new adaptive switching approach is presented in which the detection of noise is based on entropy of the pixels. Then the detected noisy pixels are replaced with the output of a fuzzy weighted filter. With a little increase in computational complexity over the basic Vector median filter and its varieties, this technique works well both in lower and higher noise ratios. Simulation results show that...
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