| Presentation | 2006/11/17 A Color Image Enhancement Method for the YC_bC_r Color Space Shinya SHIGEMURA, Akira TAGUCHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In the case of digital image/video processing, color images are represented in the YC_bC_r. The Y component is the luminance of the color. The other two components C_b, C_r represent the color-difference component. The bandwidth of C_b, C_r components are much smaller than that of luminance signal. Thus, this color space is suitable for image compression and adopted for JPEG and MPEG The YC_bC_r color space is related with the HSI (hue, saturation, intensity) color space. The HSI color apace is an ideal tool for developing image processing. In this paper, we propose a saturation enhancement method in the YC_bC_r color space. The width of (C_b, C_r) space is changed depending on the value of Y component. Since, the saturation enhancement method must be given limiting condition for the RGB color space, the constrained condition for the values of C_b, C_r are derived. Finally we propose a saturation enhancement method. This method is the equalization of saturation histogram. Histogram equalization is effect for not only intensity histogram but also saturation histogram. We can obtain the excellent enhancement results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | YC_bC_r color space / RGB color space / Saturation / histogram equalization |
| Paper # | SIS2006-63 |
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| Committee | SIS |
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| Conference Date | 2006/11/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Color Image Enhancement Method for the YC_bC_r Color Space |
| Sub Title (in English) | |
| Keyword(1) | YC_bC_r color space |
| Keyword(2) | RGB color space |
| Keyword(3) | Saturation |
| Keyword(4) | histogram equalization |
| 1st Author's Name | Shinya SHIGEMURA |
| 1st Author's Affiliation | Department of Electrical and Electronic Engineering, Musashi Institute of Technology() |
| 2nd Author's Name | Akira TAGUCHI |
| 2nd Author's Affiliation | Department of Electrical and Electronic Engineering, Musashi Institute of Technology |
| Date | 2006/11/17 |
| Paper # | SIS2006-63 |
| Volume (vol) | vol.106 |
| Number (no) | 374 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |