| Presentation | 2016-03-11 Lightness Correction and Color Gamut Adjustment for Image Enhancement Considering Characteristics of Human Visual Perception Tadahiro Azetsu, Chiaki 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) | In this report, we discuss a method of color image enhancement, which adapts to the characteristics of human visual perception. As a concrete method, the chroma of a color image is first independently enhanced while preserving the hue in the RGB color space. Next, the lightness is corrected in the CIELAB color space to consider the Helmholz-Kohlraush effect, which indicates the relation of the hue, chroma and lightness in human visual perception. In addition, a method of color gamut adjustment is proposed to address the color gamut problem accompanying the above lightness correction. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | lightness correction / color gamut adjustment / Helmholz-Kohlraush effect / RGB color space / CIELAB color space |
| Paper # | SIS2015-61 |
| Date of Issue | 2016-03-03 (SIS) |
| Conference Information | |
| Committee | SIS |
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| Conference Date | 2016/3/10(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo City Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Soft computing, etc. |
| Chair | Mitsuji Muneyasu(Kansai Univ.) |
| Vice Chair | Hirokazu Tanaka(Hiroshima City Univ.) / Takayuki Nakachi(NTT) |
| Secretary | Hirokazu Tanaka(Nagoya City Univ.) / Takayuki Nakachi(Toshiba) |
| Assistant | Hiroyuki Tsuji(Kanagawa Inst. of Tech.) / Hakaru Tamukoh(Kyushu Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media System |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Lightness Correction and Color Gamut Adjustment for Image Enhancement Considering Characteristics of Human Visual Perception |
| Sub Title (in English) | |
| Keyword(1) | lightness correction |
| Keyword(2) | color gamut adjustment |
| Keyword(3) | Helmholz-Kohlraush effect |
| Keyword(4) | RGB color space |
| Keyword(5) | CIELAB color space |
| 1st Author's Name | Tadahiro Azetsu |
| 1st Author's Affiliation | Yamaguchi Prefectural University(Yamaguchi Prefectural Univ.) |
| 2nd Author's Name | Chiaki Ueda |
| 2nd Author's Affiliation | Yamaguchi University(Yamaguchi 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 | 2016-03-11 |
| Paper # | SIS2015-61 |
| Volume (vol) | vol.115 |
| Number (no) | SIS-505 |
| Page | pp.pp.75-80(SIS), |
| #Pages | 6 |
| Date of Issue | 2016-03-03 (SIS) |