| Presentation | 2014-12-20 Subjective evaluation of constant perceived hues in the UHDTV wide-color-gamut colorimetry using natural images with cyanic colors Yukiko IWASAKI, Yukihiro NISHIDA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In a colorimetric conversion from the UHDTV wide-color gamut to the HDTV gamut without changing hue, it is desirable that perceived hue corresponds to that predicted by a color model used for the conversion. We previously measured perceived hue lines in the CIELAB color space by a subjective evaluation using color patches and found non-linearity in the cyan region. We conducted another subjective evaluation using natural images containing cyan colors in the hue range of 180° to 280° and found required adjustment of hue angles when converting those images to the HDTV gamut. We also investigated a color gamut mapping algorithm that keeps perceived hues based on the experiment result. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wide color gamut / constant perceived hue / UHDTV / color-gamut conversion/mapping |
| Paper # | IMQ2014-22 |
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| Conference Information | |
| Committee | IMQ |
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| Conference Date | 2014/12/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Image Media Quality(IMQ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Subjective evaluation of constant perceived hues in the UHDTV wide-color-gamut colorimetry using natural images with cyanic colors |
| Sub Title (in English) | |
| Keyword(1) | Wide color gamut |
| Keyword(2) | constant perceived hue |
| Keyword(3) | UHDTV |
| Keyword(4) | color-gamut conversion/mapping |
| 1st Author's Name | Yukiko IWASAKI |
| 1st Author's Affiliation | NHK Science and Technology Research Laboratories() |
| 2nd Author's Name | Yukihiro NISHIDA |
| 2nd Author's Affiliation | NHK Science and Technology Research Laboratories |
| Date | 2014-12-20 |
| Paper # | IMQ2014-22 |
| Volume (vol) | vol.114 |
| Number (no) | 386 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |