Evaluation of Predictive Equations for Local Pier Scour in Cohesive Soils
Wavelet analysis has become a powerful tool for denoising images. It represents a new way to achieve better noise reduction and increased contrast. Here, experimentally demonstrate the abilities of the discrete wavelet transform with Daubechies basis functions for improving the quality of noisy ima...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2019-12-01
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| Series: | Engineering and Technology Journal |
| Subjects: | |
| Online Access: | https://etj.uotechnology.edu.iq/article_174105_99f9d0e38e19384b6cd00ca39ceaaa00.pdf |
| _version_ | 1797326018650832896 |
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| author | Zahraa Hassan Ibtisam Karim Abdul- Al-Shukur |
| author_facet | Zahraa Hassan Ibtisam Karim Abdul- Al-Shukur |
| author_sort | Zahraa Hassan |
| collection | DOAJ |
| description | Wavelet analysis has become a powerful tool for denoising images. It represents a new way to achieve better noise reduction and increased contrast. Here, experimentally demonstrate the abilities of the discrete wavelet transform with Daubechies basis functions for improving the quality of noisy images. In this research, two methods have been compared to modify the coefficients using a soft and hard threshold to improve the visual fineness of noisy images depending on the Root-Mean-Square error (RMS). The low RMS value and better noise reduction are found in the soft threshold methods based on Daubechies wavelet (db8) for the first image RMS=0.101 and the second example RMS=0.109. |
| first_indexed | 2024-03-08T06:17:35Z |
| format | Article |
| id | doaj.art-8a5c3fe5b85242f78a4b74fbf4d6e695 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T06:17:35Z |
| publishDate | 2019-12-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-8a5c3fe5b85242f78a4b74fbf4d6e6952024-02-04T17:13:10ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582019-12-013712A58459110.30684/etj.37.12A.436174105Evaluation of Predictive Equations for Local Pier Scour in Cohesive SoilsZahraa Hassan0Ibtisam Karim1Abdul- Al-Shukur2Civil Eng. Dept., College of Eng., University of Warith Al-Anbiyaa, Karbala, Iraq.Civil Engineering Dep., University of Technology- Baghdad, IraqCivil Engineering Dep., University of Babylon-Iraq.Wavelet analysis has become a powerful tool for denoising images. It represents a new way to achieve better noise reduction and increased contrast. Here, experimentally demonstrate the abilities of the discrete wavelet transform with Daubechies basis functions for improving the quality of noisy images. In this research, two methods have been compared to modify the coefficients using a soft and hard threshold to improve the visual fineness of noisy images depending on the Root-Mean-Square error (RMS). The low RMS value and better noise reduction are found in the soft threshold methods based on Daubechies wavelet (db8) for the first image RMS=0.101 and the second example RMS=0.109.https://etj.uotechnology.edu.iq/article_174105_99f9d0e38e19384b6cd00ca39ceaaa00.pdfimage processingwavelet-analysisnoiseroot-mean-square error |
| spellingShingle | Zahraa Hassan Ibtisam Karim Abdul- Al-Shukur Evaluation of Predictive Equations for Local Pier Scour in Cohesive Soils Engineering and Technology Journal image processing wavelet-analysis noise root-mean-square error |
| title | Evaluation of Predictive Equations for Local Pier Scour in Cohesive Soils |
| title_full | Evaluation of Predictive Equations for Local Pier Scour in Cohesive Soils |
| title_fullStr | Evaluation of Predictive Equations for Local Pier Scour in Cohesive Soils |
| title_full_unstemmed | Evaluation of Predictive Equations for Local Pier Scour in Cohesive Soils |
| title_short | Evaluation of Predictive Equations for Local Pier Scour in Cohesive Soils |
| title_sort | evaluation of predictive equations for local pier scour in cohesive soils |
| topic | image processing wavelet-analysis noise root-mean-square error |
| url | https://etj.uotechnology.edu.iq/article_174105_99f9d0e38e19384b6cd00ca39ceaaa00.pdf |
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