Directional and omnidirectional edge enhancement based on radial Hilbert transform of Gabor filter
A directional and omnidirectional edge enhancement method is proposed based on radial Hilbert transform (RHLT) of directional Gabor filter (DGF). A new transfer function is introduced to develop a new RHLT that can be rotated to enhance edges along the specified direction. Furthermore, to increase t...
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| Format: | Article |
| Language: | English |
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Wiley
2016-04-01
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| Series: | Electronics Letters |
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| Online Access: | https://doi.org/10.1049/el.2015.4555 |
| _version_ | 1798026156302139392 |
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| author | Ke Wang |
| author_facet | Ke Wang |
| author_sort | Ke Wang |
| collection | DOAJ |
| description | A directional and omnidirectional edge enhancement method is proposed based on radial Hilbert transform (RHLT) of directional Gabor filter (DGF). A new transfer function is introduced to develop a new RHLT that can be rotated to enhance edges along the specified direction. Furthermore, to increase the edge response at the specified direction and suppress noise, DGF with the centre frequency being at the direct current component, is designed to be radial Hilbert transformed. |
| first_indexed | 2024-04-11T18:30:45Z |
| format | Article |
| id | doaj.art-4378e05dacdd47cf84b1b864151f65af |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-04-11T18:30:45Z |
| publishDate | 2016-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-4378e05dacdd47cf84b1b864151f65af2022-12-22T04:09:27ZengWileyElectronics Letters0013-51941350-911X2016-04-0152970170310.1049/el.2015.4555Directional and omnidirectional edge enhancement based on radial Hilbert transform of Gabor filterKe Wang0Department of Geoscience Information ScienceHohai UniversityNanjingPeople's Republic of ChinaA directional and omnidirectional edge enhancement method is proposed based on radial Hilbert transform (RHLT) of directional Gabor filter (DGF). A new transfer function is introduced to develop a new RHLT that can be rotated to enhance edges along the specified direction. Furthermore, to increase the edge response at the specified direction and suppress noise, DGF with the centre frequency being at the direct current component, is designed to be radial Hilbert transformed.https://doi.org/10.1049/el.2015.4555radial Hilbert transformdirectional edge enhancement methodomnidirectional edge enhancement methoddirectional Gabor filtertransfer functionRHLT |
| spellingShingle | Ke Wang Directional and omnidirectional edge enhancement based on radial Hilbert transform of Gabor filter Electronics Letters radial Hilbert transform directional edge enhancement method omnidirectional edge enhancement method directional Gabor filter transfer function RHLT |
| title | Directional and omnidirectional edge enhancement based on radial Hilbert transform of Gabor filter |
| title_full | Directional and omnidirectional edge enhancement based on radial Hilbert transform of Gabor filter |
| title_fullStr | Directional and omnidirectional edge enhancement based on radial Hilbert transform of Gabor filter |
| title_full_unstemmed | Directional and omnidirectional edge enhancement based on radial Hilbert transform of Gabor filter |
| title_short | Directional and omnidirectional edge enhancement based on radial Hilbert transform of Gabor filter |
| title_sort | directional and omnidirectional edge enhancement based on radial hilbert transform of gabor filter |
| topic | radial Hilbert transform directional edge enhancement method omnidirectional edge enhancement method directional Gabor filter transfer function RHLT |
| url | https://doi.org/10.1049/el.2015.4555 |
| work_keys_str_mv | AT kewang directionalandomnidirectionaledgeenhancementbasedonradialhilberttransformofgaborfilter |