| Presentation | 2023-12-08 A Proposal of Hue Preserving Contrast Enhancement Method Using Smoothed Histogram in Each RGB Component Ryushiro Matsumoto, Mashiho Mukaida, Noriaki Suetake, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Many color image enhancement methods have been proposed to improve the image quality of the captured image. However, by using these method, images can be over-emphasized and chroma adjustment can not be realized well. In this report, we propose a hue preserving contrast enhancement method that realizes adjustment of chroma. In the proposed method, the histogram of each RGB component of the original image is smoothed. Then, the histogram specification method is performed using the smoothed histograms of each RGB component to broaden the pixel distribution in the RGB color space. The values are approximated by a linear function satisfying Naik and Murthy's hue oreserving condition. Out-of-gamut values are corrected by processing in an equi-hue plane in RGB color space. In the experiments, the effectiveness of the proposed method is verified by qualitative and quantitative evaluations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Contrast enhancement / Smoothed histogram / Hue preserving / Equi-hue plane / Gamut / Chroma |
| Paper # | SIS2023-38 |
| Date of Issue | 2023-11-30 (SIS) |
| Conference Information | |
| Committee | SIS |
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| Conference Date | 2023/12/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Sakurayama Campus, Nagoya City University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Smart Personal Sysytems, etc. |
| Chair | Tomoaki Kimura(Kanagawa Inst. of Tech.) |
| Vice Chair | Naoto Sasaoka(Tottori Univ.) / Hakaru Tamukoh(Kyushu Inst. of Tech.) |
| Secretary | Naoto Sasaoka(Kanagawa Inst. of Tech.) / Hakaru Tamukoh(Kansai Univ.) |
| Assistant | Yuichiro Tanaka(kyushu Inst. of Tech.) / Yosuke Sugiura(Saitama Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Proposal of Hue Preserving Contrast Enhancement Method Using Smoothed Histogram in Each RGB Component |
| Sub Title (in English) | |
| Keyword(1) | Contrast enhancement |
| Keyword(2) | Smoothed histogram |
| Keyword(3) | Hue preserving |
| Keyword(4) | Equi-hue plane |
| Keyword(5) | Gamut |
| Keyword(6) | Chroma |
| 1st Author's Name | Ryushiro Matsumoto |
| 1st Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| 2nd Author's Name | Mashiho Mukaida |
| 2nd Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| 3rd Author's Name | Noriaki Suetake |
| 3rd Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| Date | 2023-12-08 |
| Paper # | SIS2023-38 |
| Volume (vol) | vol.123 |
| Number (no) | SIS-296 |
| Page | pp.pp.77-82(SIS), |
| #Pages | 6 |
| Date of Issue | 2023-11-30 (SIS) |