Three stage de-noising using local pixel grouping (LPG) with Dual Tree Complex Wavelet Packets (DTCWP)

A. Velayudham, Kanthavel Radhakrishnan, K. Madhan Kumar

Research output: Contribution to journalJournal articlepeer-review

1 Scopus citations

Abstract

In this paper, we propose a three stage image de-noising technique by using Dual Tree Complex Wavelet Packets (DTCWP) and LPG-PCA method. DTCWP and histon calculation is a method to identify the noisy pixel information and remove a small amount of noise in the first stage. The second stage yields an initial estimation of the image by removing most of the noise and the third stage is further refined from the output of the second stage. The three stages have the same process except for the parameter of noise level. As the noise is considerably brought down in the first and second stages, the procedure of morphological and region props matlab function tends to get further enhanced in the third stage leading to the astounding fact that the ultimate de-noising result is visually far superior. The proposed method has been compared with our previous de-noising technique with Gaussian and saltpepper noise. From the results, we can conclude that the proposed de-noising technique have shown better values for the performance parameters, obtaining the PSNR of 27.93 dB and SDME of 84.678.

Original languageEnglish
Pages (from-to)4631-4640
Number of pages10
JournalInformation (Japan)
Volume17
Issue number9B
StatePublished - 1 Sep 2014
Externally publishedYes

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