This paper proposes a technique for reducing impulse noise from corrupted hyperspectral images. We exploit the spatiospectral correlation present in hyperspectral images to sparsify the datacube. Since impulse noise is sparse, denoising is framed as an L1-norm regularized L1-norm data fidelity minimization problem. We derive an efficient split Bregman based algorithm to solve the same. Experime...

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 undistu...

In this paper, we address the problem of the restoration of images which have been affected by impulse noise or by a mixture of Gaussian and impulse noise. We rely on a patch-based approach, which requires careful choices for both the distance between patches and for the statistical estimator of the original patch. Experiments are led in the case of pure impulse noise and in the case of a mixtu...

Median-filters have been used for a very long time as an influential non-linear technique to removal of impulse noise. There have been many suggestions regarding the filters that can get rid of this noise while keeping the necessary details. However, these filters have one thing in common: They are only effective at low noise rate and thus are practical only for low-noise in image. Another thin...

This paper deals with impulse noise removal from color images. The proposed noise removal algorithm employs a novel approach with morphological filtering for color image denoising; that is, detection of corrupted pixels and removal of the detected noise by means of morphological filtering. With the help of computer simulation we show that the proposed algorithm can effectively remove impulse no...

We consider the design of near-capacity-achieving error-correcting codes for a discrete multitone (DMT) system in the presence of both additive white Gaussian noise and impulse noise. Impulse noise is one of the main channel impairments for digital subscriber lines (DSL). One way to combat impulse noise is to detect the presence of the impulses and to declare an erasure when an impulse occurs. ...

Due to the 10-bit design of SEAWIFS instrument and the signal transmission, many SEAWIFS satellite images are expected to have lower digitization noise and corrupted impulse noise. In this paper, we first analyze the characteristics of impulse noise and propose a new rank-ordered filter based on the difference of sequence for mean/standard, which is named as Statistical Ratio Rank Ordered Diffe...