| Presentation | 2021-11-15 [Poster Presentation] On Visibility Improvement of Image with Biased Brightness Distribution by Near Hue-preserving Color Enhancement Method Using Reversible Digital Watermarking Rio Kurokawa, Kazuki Yamato, Madoka Hasegawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been investigating the near hue-preserving color enhancement method to enhance the contrast and saturation of color images using a histogram-based reversible digital watermarking technique. However, this method cannot improve the visibility of the specific regions in color image when the brightness histogram of it is biased toward low or high brightness. To solve this problem, two improvements are added to our previous method, i.e. two types of shift processing after the preprocessing and the limit on the number of divisions of brightness bins in color enhancement and embedding processes, which are effective for the noise reduction and the visibility improvement of the enhanced image. From the simulation result, it was confirmed that our method can improve the subjective visibility although the objective score is slightly inferior to the previous method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Reversible digital watermarking / Contrast enhancement / Saturation enhancement / Noise reduction |
| Paper # | EA2021-39,EMM2021-66 |
| Date of Issue | 2021-11-08 (EA, EMM) |
| Conference Information | |
| Committee | EMM / EA / ASJ-H |
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| Conference Date | 2021/11/15(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Beginners Session] Engineering/Electro Acoustics, Content Processing, Digital Watermarking, Psychological and Physiological Acoustics, and Related Topics |
| Chair | Ryoichi Nishimura(NICT) / Yoshinobu Kajikawa(Kansai Univ.) / 加藤 宏明(NICT) |
| Vice Chair | Masaaki Fujiyoshi(Tokyo Metropolitan Univ.) / Masatsugu Ichino(Univ. of Electro-Comm.) / Kenichi Furuya(Oita Univ.) / Shoichi Koyama(Univ. of Tokyo) / 坂本 修一(東北大) |
| Secretary | Masaaki Fujiyoshi(Utsunomiya Univ.) / Masatsugu Ichino(NICT) / Kenichi Furuya(NTT) / Shoichi Koyama(RitsumeikanUniv.) / 坂本 修一(東大) |
| Assistant | Shoko Imaizumi(Chiba Univ.) / Youichi Takashima(Kaishi Professional Univ.) / Yukou Wakabayashi(Tokyo Metropolitan Univ.) / Tatsuya Komatsu(LINE) |
| Paper Information | |
| Registration To | Technical Committee on Enriched MultiMedia / Technical Committee on Engineering Acoustics / Auditory Research Meeting |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] On Visibility Improvement of Image with Biased Brightness Distribution by Near Hue-preserving Color Enhancement Method Using Reversible Digital Watermarking |
| Sub Title (in English) | |
| Keyword(1) | Reversible digital watermarking |
| Keyword(2) | Contrast enhancement |
| Keyword(3) | Saturation enhancement |
| Keyword(4) | Noise reduction |
| 1st Author's Name | Rio Kurokawa |
| 1st Author's Affiliation | Utsunomiya University(Utsunomiya Univ.) |
| 2nd Author's Name | Kazuki Yamato |
| 2nd Author's Affiliation | Utsunomiya University(Utsunomiya Univ.) |
| 3rd Author's Name | Madoka Hasegawa |
| 3rd Author's Affiliation | Utsunomiya University(Utsunomiya Univ.) |
| Date | 2021-11-15 |
| Paper # | EA2021-39,EMM2021-66 |
| Volume (vol) | vol.121 |
| Number (no) | EA-246,EMM-247 |
| Page | pp.pp.69-73(EA), pp.69-73(EMM), |
| #Pages | 5 |
| Date of Issue | 2021-11-08 (EA, EMM) |