Variational Retinex model based on an extension of TV regularization with relative gradient and its application
In view of the shortcomings of the total variational Retinex model which use the total variation (TV) of the reflection as the regularization.An extension of TV regularization with the concept of relative gradient was introduced and finally a new variational Retinex model was proposed.Compared with...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2017-11-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017212/ |
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| _version_ | 1841539485693640704 |
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| author | Ning ZHI Shan-jun MAO Mei LI |
| author_facet | Ning ZHI Shan-jun MAO Mei LI |
| author_sort | Ning ZHI |
| collection | DOAJ |
| description | In view of the shortcomings of the total variational Retinex model which use the total variation (TV) of the reflection as the regularization.An extension of TV regularization with the concept of relative gradient was introduced and finally a new variational Retinex model was proposed.Compared with variational Retinex and total variational Retinex model,the proposed model can preserve the estimated reflectance with more details as well as the more smoothed illumination.Further,a new integrated image enhancement model considering both the illumination and the reflectance was proposed.By adjusting the model parameters,the proposed model can be effectively applied to high dynamic range image tone mapping and non-uniform illumination enhancement.Compared with other algorithms,the proposed model can better handle the above image enhancement problems. |
| format | Article |
| id | doaj-art-26fed9470d694237a4a9d1f52e563736 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2017-11-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-26fed9470d694237a4a9d1f52e5637362025-01-14T07:13:19ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2017-11-0138657559713303Variational Retinex model based on an extension of TV regularization with relative gradient and its applicationNing ZHIShan-jun MAOMei LIIn view of the shortcomings of the total variational Retinex model which use the total variation (TV) of the reflection as the regularization.An extension of TV regularization with the concept of relative gradient was introduced and finally a new variational Retinex model was proposed.Compared with variational Retinex and total variational Retinex model,the proposed model can preserve the estimated reflectance with more details as well as the more smoothed illumination.Further,a new integrated image enhancement model considering both the illumination and the reflectance was proposed.By adjusting the model parameters,the proposed model can be effectively applied to high dynamic range image tone mapping and non-uniform illumination enhancement.Compared with other algorithms,the proposed model can better handle the above image enhancement problems.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017212/variational Retinex modelrelative gradientintegrated image enhancement modelHDR |
| spellingShingle | Ning ZHI Shan-jun MAO Mei LI Variational Retinex model based on an extension of TV regularization with relative gradient and its application Tongxin xuebao variational Retinex model relative gradient integrated image enhancement model HDR |
| title | Variational Retinex model based on an extension of TV regularization with relative gradient and its application |
| title_full | Variational Retinex model based on an extension of TV regularization with relative gradient and its application |
| title_fullStr | Variational Retinex model based on an extension of TV regularization with relative gradient and its application |
| title_full_unstemmed | Variational Retinex model based on an extension of TV regularization with relative gradient and its application |
| title_short | Variational Retinex model based on an extension of TV regularization with relative gradient and its application |
| title_sort | variational retinex model based on an extension of tv regularization with relative gradient and its application |
| topic | variational Retinex model relative gradient integrated image enhancement model HDR |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017212/ |
| work_keys_str_mv | AT ningzhi variationalretinexmodelbasedonanextensionoftvregularizationwithrelativegradientanditsapplication AT shanjunmao variationalretinexmodelbasedonanextensionoftvregularizationwithrelativegradientanditsapplication AT meili variationalretinexmodelbasedonanextensionoftvregularizationwithrelativegradientanditsapplication |