Further, a technique known as adaptive decision based filtering is proposed and applied.filter to the recently developed theory of optimal weighted median filtering. Weighted median filters for image and image sequence restora.Abstract A new median-based filter, progressive switching median. Index Terms Image enhancement, impulse detection, median filter, nonlinear filter.shown that relaxed med...

Noise is caused by malfunctioning pixels in camera sensors, faulty memory locations in hardware, or transmission in a noisy channel. Two common types of impulse noise are the salt-and-pepper noise and the random-valued noise. There are many works on the restoration of images corrupted by impulse noise. The median filter was once the most popular nonlinear filter for removing impulse noise, beca...

This paper describes two methods for impulse noise reduction in colour images that outperform the vector median filter from the noise reduction capability point of view. Both methods work by determining first the vector median in a given filtering window. Then, the use of complimentary information from componentwise analysis allows to build robust outputs from more reliable components. The corr...

An extension of the bilateral filter is described. The proposed filter is a weighted median filter which adaptively estimates the weights in a similar manner to that of the bilateral filter. The proposed filter strikes a compromise between smoothing and preserving important detail.

In this paper, we propose a class of median-based matrix information geometry (MIG) detectors with manifold filter and apply them to signal detection in nonhomogeneous environments. As customary, the sample data is assumed be modeled as Hermitian positive-definite (HPD) matrices, geometric median set HPD matrices interpreted an estimate clutter covariance (CCM). Then, problem can reformulated d...

A new filtering approach designed to eliminate impulsive noise in color images, while preserving fine image details is presented in this paper. The computational complexity of the new filter is significantly lower than that of the Vector Median Filter. The comparison shows that the new filter outperforms the VMF, as well as other standard procedures used in color image processing, when the impu...