| Presentation | 2019-06-13 A Proposal of Improvement Method of Local Color Correction Seiichi Kojima, Yoshiaki Ueda, Noriaki Suetake, Eiji Uchino, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It is difficult to take good pictures, when the scene has both of bright and dark regions. The visibility of the picture will be low, because dark regions are underexposure and bright regions are overexposure. N.Moroney proposed Local Color Correction(LCC) to improve the quality of such an image. LCC is a simple and effective method. However, it has some problems. Firstly, the scope of appropriate parameters for adjusting brightness is narrow. Secondly, although appropriate parameters of Gaussian filter are different for detail regions and other regions, only one parameter is adopted for entire image. Thirdly, LCC causes halo artifact. In this report, we propose an improvement method of LCC. In the proposed method, the intensity transform function is changed, different parameters are adopted for detail regions and other regions respectively and cross bilateral filter is used to prevent halo artifact. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | image enhancement / gamma correction / smoothing / cross bilateral filter |
| Paper # | SIS2019-7 |
| Date of Issue | 2019-06-06 (SIS) |
| Conference Information | |
| Committee | SIS / IPSJ-AVM / ITE-3DIT |
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| Conference Date | 2019/6/13(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukue Culture Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Intelligent Multimedia Systems, Applied Enbedded Systems, Three-Dimensional Image Technology (3DIT), etc. |
| Chair | Takayuki Nakachi(NTT) / Sei Naito(KDDI Research, Inc.) / Tsutomu Horikoshi(Shonan Institute of Technology) |
| Vice Chair | Noriaki Suetake(Yamaguchi Univ.) / Tomoaki Kimura(Kanagawa Inst. of Tech.) |
| Secretary | Noriaki Suetake(Tokyo Metropolitan Univ.) / Tomoaki Kimura(Kindai Univ.) / (NTT) / (Tokyo Univ. of Science) |
| Assistant | Hideaki Misawa(National Inst. of Tech., Ube College) / Yukihiro Bandoh(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media Systems / Special Interest Group on Audio Visual and Multimedia Information Processing / Technical Group on Three-Dimensional Image Technology |
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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 Improvement Method of Local Color Correction |
| Sub Title (in English) | |
| Keyword(1) | image enhancement |
| Keyword(2) | gamma correction |
| Keyword(3) | smoothing |
| Keyword(4) | cross bilateral filter |
| 1st Author's Name | Seiichi Kojima |
| 1st Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| 2nd Author's Name | Yoshiaki Ueda |
| 2nd Author's Affiliation | Fukuoka University(Fukuoka Univ.) |
| 3rd Author's Name | Noriaki Suetake |
| 3rd Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| 4th Author's Name | Eiji Uchino |
| 4th Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| Date | 2019-06-13 |
| Paper # | SIS2019-7 |
| Volume (vol) | vol.119 |
| Number (no) | SIS-78 |
| Page | pp.pp.35-40(SIS), |
| #Pages | 6 |
| Date of Issue | 2019-06-06 (SIS) |