| Presentation | 2017-12-15 A Proposal of Illuminant Color Estimation Method Based on Pseudo Specular Reflection Detection Daiki Moriyama, 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) | White balance (WB) is a process in order to remove unrealistic color casts so that objects which appear white in person are rendered white in color images, and is one of important techniques in the field of color image processing. To realize WB effectively, the illuminant color should be accurately estimated from a color image. In this report, we propose the illuminant color estimation method achieved by the pseudo specular reflection detection, and the color adjustment of the color image is realize by the WB based on the estimated illuminant color. In the proposed method, pixels which are brighter than neighborhood and their neighboring pixels are found at first. Then, means of their pixel values are calculated respectively, and the specular reflection is detected approximately as the difference of the means. Finally, the illuminant color is estimated as the specular reflection itself. Through the experiment using various digital color images, it is shown that the proposed method can estimate the illuminant color better than the conventional methods. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Specular reflection / White balance |
| Paper # | SIS2017-50 |
| Date of Issue | 2017-12-07 (SIS) |
| Conference Information | |
| Committee | SIS |
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| Conference Date | 2017/12/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tottori Prefectural Center for Lifelong Learning |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | System on Silicon, Short Range Wireless Systems, etc. |
| Chair | Hirokazu Tanaka(Hiroshima City Univ.) |
| Vice Chair | Takayuki Nakachi(NTT) / Noriaki Suetake(Yamaguchi Univ.) |
| Secretary | Takayuki Nakachi(Kanagawa Inst. of Tech.) / Noriaki Suetake(Kyushu Inst. of Tech.) |
| Assistant | Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) / Takanori Koga(NIT, Tokuyama Col.) |
| 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 Illuminant Color Estimation Method Based on Pseudo Specular Reflection Detection |
| Sub Title (in English) | |
| Keyword(1) | Specular reflection |
| Keyword(2) | White balance |
| 1st Author's Name | Daiki Moriyama |
| 1st Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| 2nd Author's Name | Yoshiaki Ueda |
| 2nd Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| 3rd Author's Name | Takanori Koga |
| 3rd Author's Affiliation | National Institute of Technology, Tokuyama College(NIT, Tokuyama College) |
| 4th Author's Name | Noriaki Suetake |
| 4th Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| 5th Author's Name | Eiji Uchino |
| 5th Author's Affiliation | Yamaguchi University(Yamaguchi Univ.) |
| Date | 2017-12-15 |
| Paper # | SIS2017-50 |
| Volume (vol) | vol.117 |
| Number (no) | SIS-349 |
| Page | pp.pp.95-100(SIS), |
| #Pages | 6 |
| Date of Issue | 2017-12-07 (SIS) |