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Vector sigma filters for noise detection and removal in color images

Rastislav Lukac, Bogdan Smolka, Konstantinos N. Plataniotis, Anastasios N. Venetsanopoulos
2006 Journal of Visual Communication and Image Representation  
Robust order-statistic concepts and statistical measure of vectorsÕ deviation are used in conjunction with different distance measures among multichannel inputs to determine an efficient switching rule  ...  between filter output and no filtering (identity operation).  ...  The most popular color image filters are those based on the concept of robust vector order-statistics ( Fig. 1 ) [1, 2, 36] .  ... 
doi:10.1016/j.jvcir.2005.08.007 fatcat:enjiqigmp5hz7kiy36jd2svy7e

Adaptive rank weighted switching filter for impulsive noise removal in color images

Bogdan Smolka, Krystyna Malik, Dariusz Malik
2012 Journal of Real-Time Image Processing  
The described switching filter is based on the rank weighted, cumulated pixel dissimilarity measures, which are used for the detection of image samples contaminated by impulsive noise process.  ...  The introduced adaptive design enables the filter to tune its parameters to the amount of impulsive noise corrupting the image.  ...  PGF Peer Group Filter [72] ACWVMF Adaptive Center-Weighted Vector Median Filter [53] RODSVMF Rank-Ordered Differences Statistic Based Switching Vector Median Filter [62] ACWDDF Adaptive Center-Weighted  ... 
doi:10.1007/s11554-012-0307-0 fatcat:yswcqfkydvcgjn6pir7dhn5mqu

Reduced Ordering Technique of Impulsive Noise Removal in Color Images [chapter]

Bogdan Smolka, Krystyna Malik
2013 Lecture Notes in Computer Science  
The performance comparison shows that the proposed filtering design yields significantly better denoising results than the most efficient filters developed for the impulsive noise suppression in color  ...  The new filtering design is able to effectively suppress impulsive noise, while preserving fine image details.  ...  The most popular family of nonlinear filters used for impulsive noise removal in color images is based on the order statistics [4] .  ... 
doi:10.1007/978-3-642-36700-7_23 fatcat:m7wusuegrvgehb7go4xxdjlulq

VIRTUAL RESTORATION OF ARTWORKS USING ENTROPY-BASED COLOR IMAGE FILTERING SCHEMES [chapter]

Rastislav Lukac, Konstantinos N. Plataniotis, Bogdan Smolka
2006 Computational Imaging and Vision  
This paper presents a family of adaptive color image filters based on robust order-statistics and local contrast entropy control.  ...  The proposed filtering class is fully adaptive and free of any optimization procedure.  ...  Replacing the sample meanx of (2) with the lowest ranked vector x (1) constitutes the ranking based entropy vector median filter.  ... 
doi:10.1007/1-4020-4179-9_44 dblp:conf/iccvg/LukacPS04 fatcat:rzcjuu2pc5hfno4jfebnf3psh4

Fast Switching Filter for Impulsive Noise Removal from Color Images

M. Emre Celebi, Hassan A. Kingravi, Bakhtiyar Uddin, Y. Alp Aslandogan
2007 Journal of Imaging Science and Technology  
In this paper, we present a fast switching filter for impulsive noise removal from color images.  ...  The filter exploits the HSL color space, and is based on the peer group concept, which allows for the fast detection of noise in a neighborhood without resorting to pairwise distance computations between  ...  An important class of nonlinear vector filters is the one based on robust order-statistics with the vector median filter (VMF) [15] , the basic vector directional filter (BVDF) [16] , and the directionaldistance  ... 
doi:10.2352/j.imagingsci.technol.(2007)51:2(155) fatcat:ezfx6til6zf4xnwxnze7gyqe3a

Blind Adaptive Constrained Constant-Modulus Reduced-Rank Interference Suppression Algorithms Based on Interpolation and Switched Decimation

Rodrigo C. de Lamare, Raimundo Sampaio-Neto, Martin Haardt
2011 IEEE Transactions on Signal Processing  
The proposed BARC scheme and a reduced-rank decomposition based on the concept of joint interpolation, switched decimation and reduced-rank estimation subject to a set of constraints are then detailed.  ...  A model-order selection algorithm for adjusting the length of the estimators is devised along with techniques for determining the required number of switching branches to attain a predefined performance  ...  , leading to different vectors , , where is the decimation factor and is the rank of the BARC system.  ... 
doi:10.1109/tsp.2010.2091274 fatcat:33wua2xlo5cvlowyhtjnkdxexm

Extension of Impulse Detectors to Spatial Dimension and their Utilization as Switch in the LMS L-SD Filter

S. Marchevsky, R. Hudec
2001 Radioengineering  
Some versions of spatial order statistic detectors weredeveloped from the impulse detectors and were employed as switchbetween output these filters.  ...  In this paper, one kind of adaptive LMS filters based on orderstatistics is used for two-dimensional filtration of noisy greyscaleimages degraded by mixed noise.  ...  One of the best-known classes of nonlinear filters is based on the order statistics.  ... 
doaj:ac7a439c446f40dcbcc2e775ff1fa8ae fatcat:gmlgxbphv5a6jivsyt7j4ojhwe

Performance Evaluation of different Image Filtering Algorithms using Image Quality Assessment

M.Prema Kumar, P.H.S.Tejo Murthy, P.Rajesh Kumar
2011 International Journal of Computer Applications  
In this paper, five different filtering algorithms are compared based on the ability to reconstruct noise affected images using ROI-SSIM.  ...  Experimental results give us the quality assessment of filtering algorithms based on region of interest.  ...  FILTERING ALGORITHMS Order-static filters are nonlinear filters whose response is based on the ordering (ranking) the pixels contained in the image area encompassed by the filter, and then replacing the  ... 
doi:10.5120/2289-2972 fatcat:66bao5jdvfdorojpb2ectfbuim

An Effective Noise Adaptive Median Filter for Removing High Density Impulse Noises in Color Images

S. Abdul Saleem, T. Abdul Razak
2016 International Journal of Electrical and Computer Engineering (IJECE)  
The proposed method is a spatial domain approach and uses the 3×3 overlapping window to filter the signal based on the correct selection of neighborhood values to obtain the effective median per window  ...  In this paper we have analyzed and tested the number of existing median filtering algorithms and their limitations.  ...  Order statistic filters are nonlinear spatial filters whose response is based on ordering the pixels contained in the image area encompassed by the filter and then replacing the value of the center pixel  ... 
doi:10.11591/ijece.v6i2.9044 fatcat:lhi57h567vhhrpzqmsbnrr2zla

Generalized low-rank decompositions with switching and adaptive algorithms for space-time adaptive processing

Rodrigo C. de Lamare
2011 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
An alternating optimization strategy based on recursive least squares algorithms is presented along with switching and iterations to cost-effectively compute the bases of the decomposition and the low-rank  ...  filter.  ...  In order to compute the parameters required in the signal decomposition and the low-rank filter, an alternating optimization strategy based on recursive least squares (RLS) algorithms is presented along  ... 
doi:10.1109/icassp.2011.5947306 dblp:conf/icassp/Lamare11 fatcat:4kir2425qzdmjcz735c6xgjfdu

Efficient Novel Vector Median Filter Design for Impulse Noise Suppression in Color Images

Benjamin Asubam Weyori, Kwame Osei Boateng, Sampson Twumasi-Ankrah
2017 International Journal of Innovative Computing, Information and Control  
This work proposes an intelligent switching based vector median filter that adapts and combines different techniques for noise detection, noise filtering.  ...  Although different types of efficient vectors' median filters have been proposed in literature, researchers have not resolved the problem identified in vector filters: (i) detecting impulse noise in individual  ...  Filter Abbreviation Filter PGF Peer Group Filter ACWVMF Adaptive Center-Weighted Vector Median Filter RODSVMF Rank-Ordered Differences Statistic Based Switching Vector Median Filter ACWDDF Adaptive Center-Weighted  ... 
doi:10.24507/ijicic.13.06.1965 fatcat:izmbqdycvre5fo3mi6qwwqq5yy

Generalized Reduced-Rank Decompositions Using Switching and Adaptive Algorithms for Space-Time Adaptive Processing [article]

R. C. de Lamare
2013 arXiv   pre-print
An alternating optimization strategy based on recursive least squares algorithms is presented along with switching and iterations to cost-effectively compute the bases of the decomposition and the low-rank  ...  filter.  ...  In order to compute the parameters required in the signal decomposition and the low-rank filter, an alternating optimization strategy based on recursive least squares (RLS) algorithms is presented along  ... 
arXiv:1304.1932v1 fatcat:tz5e3kltjnaf7gi2ctlhxpxbca

Quaternion switching filter for impulse noise reduction in color image

Xin Geng, Xiaoguang Hu, Jin Xiao
2012 Signal Processing  
Based on the difference mentioned above, an efficient filter that can switch between the vector median filter (VMF) and the identity filter (no filtering operation) is proposed.  ...  By applying the quaternion unit transform theory, the difference between two color pixels can be represented in the quaternion form.  ...  (ASVMF) [22] , the robust switching vector median filter (RSVMF) [19] , the adaptive center-weighted vector median filter (ACWVMF) [20] , the fuzzy rank-ordered differences statistic filter (FRF)  ... 
doi:10.1016/j.sigpro.2011.06.015 fatcat:wjplprig5bdbbh3ffqm3b4ntzy

A survey on impulse noise removal techniques in image processing

Baby Victoria L., Sathappan S.
2018 International Journal of Advanced Technology and Engineering Exploration  
Then, based on the observed limitations, further improvements on impulse noise removal techniques are suggested.  ...  Initially, different techniques are analysed and its limitations are addressed.  ...  Localised rank-ordered differences vector filter [10] was proposed for suppression of high-density impulse noise in color images.  ... 
doi:10.19101/ijatee.2018.543008 fatcat:7bomp65gang5xh22z262v5odxm

Nonlinear vector filtering for impulsive noise removal from color images

Hassan A. Kingravi
2007 Journal of Electronic Imaging (JEI)  
In order to ensure a fair efficiency comparison, a fast and accurate approximation for the inverse cosine function is introduced.  ...  In this paper, a comprehensive survey of 48 filters for impulsive noise removal from color images is presented. The filters are formulated using a uniform notation and categorized into 8 families.  ...  order statistics, with the vector median filter ͑VMF͒ 8 being the most widely known example.  ... 
doi:10.1117/1.2772639 fatcat:zaq3fdzqmrfbhc65wzmmp2o3ta
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