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  1. Article ; Online: seasonal gastroenteritis associated with bacterial species among Iraqi children

    Maha Abdul -Jabar

    مجلة كلية الطب, Vol 48, Iss

    2006  Volume 2

    Abstract: Background: ...

    Abstract Background:
    Keywords gastroenteritis ; bacterial species ; children ; Medicine ; R ; Medicine (General) ; R5-920
    Language English
    Publishing date 2006-07-01T00:00:00Z
    Publisher Faculty of Medicine University of Baghdad
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: De-speckling 2D-Discrete Wavelet Transform with Hard Threshold Stage

    Dhafer Hasan / Maha Abdul-Jabar / Zahraa Abed Al-Mokhtar

    Al-Rafidain Journal of Computer Sciences and Mathematics, Vol 9, Iss 1, Pp 101-

    2012  Volume 112

    Abstract: In this work, a new method is implemented for removing noise from gray scale image that depends on two-dimensional discrete wavelet transform and Threshold stage (hard threshold). This paper represents the algorithm to remove the speckle noise by using ... ...

    Abstract In this work, a new method is implemented for removing noise from gray scale image that depends on two-dimensional discrete wavelet transform and Threshold stage (hard threshold). This paper represents the algorithm to remove the speckle noise by using logarithm operation. This operation changes the multiplicative noise to additive noise. So that, the removing operation becomes easier. The Matlab program is used to build the Algorithm and measure the PSNR and other measurement criteria as (NMV, NV, NSD, ENL and PSNR) to study the effect of removing noise from corrupted image. The PSNR reaches to 24dB which is very satisfactory result in the reconstructed image, while the maximum value of ENL is 2.23 * 10 6 , and the minimum value of NMV, NV, NSD which is equal to 6.79, 2.67*10 -5 , 46* 10 -4 respectively gives a smoother and cleaner image. The universal Threshold is applied in high frequency coefficient (i.e. the LH, HL, and HH-sub band of image) to remove the speckle noise and the low frequency coefficient (LL-sub band of image) is still without any change.
    Keywords speckle noise ; discrete wavelet transform ; universal threshold ; logarithmic function ; Mathematics ; QA1-939 ; Electronic computers. Computer science ; QA75.5-76.95
    Subject code 333
    Language Arabic
    Publishing date 2012-07-01T00:00:00Z
    Publisher Mosul University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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