| Presentation | 2015-03-05 Gradient Norm-based Multiscale Histogram Equalization Yoshiaki UEDA, Takanori KOGA, Noriaki SUETAKE, Eiji UCHINO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the contrast enhancement of the image, histogram equalization (HE) is used widely. After the HE processing, images have much contrast because an entropy of the intensity is maximized. However, the enhanced image becomes unnatural because plane parts of the image are over-enhanced. To cope with the problem, a gradient norm-based histogram equalization(GNHE) has been proposed in recent research. The GNHE has an advantage that the over-enhancement is suppressed in the plane parts. However, an overexposure and an underexposure are occured in the detail parts. In this report, we propose a contrast enhancement method which realizes the natural enhancement. Through the experiments using some images, the effectiveness of the proposed method is verified. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Histogram equalization / local histogram equalization / integral histogram |
| Paper # | SIS2014-99 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2015/2/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Gradient Norm-based Multiscale Histogram Equalization |
| Sub Title (in English) | |
| Keyword(1) | Histogram equalization |
| Keyword(2) | local histogram equalization |
| Keyword(3) | integral histogram |
| 1st Author's Name | Yoshiaki UEDA |
| 1st Author's Affiliation | Yamaguchi University() |
| 2nd Author's Name | Takanori KOGA |
| 2nd Author's Affiliation | Tokuyama College of Technology |
| 3rd Author's Name | Noriaki SUETAKE |
| 3rd Author's Affiliation | Yamaguchi University |
| 4th Author's Name | Eiji UCHINO |
| 4th Author's Affiliation | Yamaguchi University |
| Date | 2015-03-05 |
| Paper # | SIS2014-99 |
| Volume (vol) | vol.114 |
| Number (no) | 496 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |