Results 11 to 20 of about 83,293 (195)

An Efficient Two-layer based Technique for Content-based Image Retrieval

open access: yesUHD Journal of Science and Technology, 2021
The rapid advancement and exponential evolution in the multimedia applications raised the attentional research on content-based image retrieval (CBIR).
Fawzi Abdul Azeez Salih   +1 more
doaj   +1 more source

A combining two ksvm classifiers based on True pixel values and Discrete wavelet transform for mri-based brain tumor detection and Classification [PDF]

open access: yesEngineering and Technology Journal, 2022
The studies on brain tumor detection and classification are continuing to improvethe specialists’ ability in diagnosis. Magnetic Resonance Imaging (MRI) is one ofthe most common techniques used to evaluate brain tumors diagnosis.
Ali Mohammed   +2 more
doaj   +1 more source

TWO-STEP PROVIDING OF DESIRED QUALITY IN LOSSY IMAGE COMPRESSION BY SPIHT

open access: yesРадіоелектронні і комп'ютерні системи, 2020
Image information technology has become an important perception technology considering the task of providing lossy image compression with the desired quality using certain encoders Recent researches have shown that the use of a two-step method can ...
Fangfang Li   +2 more
doaj   +1 more source

ECG Analysis Using DWT and Wavelet Coefficient to Reduce the Feature and SVM-ICP for Classification and Matching [PDF]

open access: yesEngineering and Technology Journal, 2018
The Electrocardiogram (ECG) considered as one of the important issue in the medical field (hospitals and clinics), which is used to represent the health of a heart.
Janan Mahdi
doaj   +1 more source

Chaotic Image Steganography using DCT and DWT [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
The researchers was interest in the issue of security from long time ago  even  arrived to the current age (the digital age), and because of the importance of this topic and the challenges in it, so this work which included  study and application of new ...
Nadia Mohammed
doaj   +1 more source

A study of discrete wavelet transform based denoising to reduce the effect of artificial light interferences for indoor optical wireless communication [PDF]

open access: yes, 2010
The optical power penalty (OPP) due to the artificial light interferences (ALIs) can be significantly high in an indoor optical wireless communication (OWC) channel making such link practically infeasible.
Angelova, Maia   +2 more
core   +1 more source

A Novel Dual Image Watermarking Technique Using Homomorphic Transform and DWT

open access: yesJournal of Intelligent Systems, 2020
In this paper a new technique of dual image watermarking is proposed for protection of ownership rights which utilizes salient properties of homomorphic transform (HT), discrete wavelet transform (DWT), singular value decomposition (SVD) and Arnold ...
Khare Priyank, Srivastava Vinay Kumar
doaj   +1 more source

Measuring the galaxy power spectrum and scale-scale correlations with multiresolution-decomposed covariance -- I. method [PDF]

open access: yes, 2000
We present a method of measuring galaxy power spectrum based on the multiresolution analysis of the discrete wavelet transformation (DWT). Since the DWT representation has strong capability of suppressing the off-diagonal components of the covariance for
Aubry N.   +8 more
core   +2 more sources

Research on Color Watermarking Algorithm Based on RDWT-SVD [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2017
In this paper, a color image watermarking algorithm based on Redundant Discrete Wavelet Transform (RDWT) and Singular Value Decomposition (SVD) is proposed.
Y. Han, X. Cui, Y. Zhang, T. Xu
doaj   +1 more source

On the energy leakage of discrete wavelet transform [PDF]

open access: yes, 2008
The energy leakage is an inherent deficiency of discrete wavelet transform (DWT) which is often ignored by researchers and practitioners. In this paper, a systematic investigation into the energy leakage is reported.
Abry   +27 more
core   +1 more source

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