| Presentation | 2001/4/13 A simplified histogram explosion method and its apply to the enhancement of color images Yoshinori IKEDA, Akira TAGUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to make an interpretation, we often apply histogram modification techniques to low contrast multichannel signals. Thus, the histogram modification is useful in numerous applications, such as the analysis of reconnaissance images, remote sensing, and industrial inspection. Histogram processing of color images is usually performed by independent processing of three components (e. g., R, G, and B signals or Y, I, and Q signals). However, because 1-D histograms do not define a unique 3-D histogram, independent processing of components is unlikely to produce output approximating the full extent of the RGB gamut. Recently, Mlsna proposed the histogram explosion (HE) technique that performs full multidimentional processing and procedures output signal whose histograms approach the full display gamut. In the case of the HE method, we need high computational cost, since it is necessary to calculate the transform functions for all color components independently. In this paper, in order to conquer the defect of the computational effort of the HE technique, we propose a simplified HE (SHE) method for 2-channel signals. The proposed method realizes the reduction of computation. Furthermore we extend the SHE method to color images with HSI color space. The proposed histogram modification method for color images performs the "I" component and the "HS" plane independently. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multichannel signal / histogram equalization / HSI color space |
| Paper # | DSP2001-7,IE2001-7,MI2001-7 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2001/4/13(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Image Engineering (IE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A simplified histogram explosion method and its apply to the enhancement of color images |
| Sub Title (in English) | |
| Keyword(1) | multichannel signal |
| Keyword(2) | histogram equalization |
| Keyword(3) | HSI color space |
| 1st Author's Name | Yoshinori IKEDA |
| 1st Author's Affiliation | Department of Electrical and Electronic and Electronic Engineering Musashi Institute of Technology() |
| 2nd Author's Name | Akira TAGUCHI |
| 2nd Author's Affiliation | Department of Electrical and Electronic and Electronic Engineering Musashi Institute of Technology |
| Date | 2001/4/13 |
| Paper # | DSP2001-7,IE2001-7,MI2001-7 |
| Volume (vol) | vol.101 |
| Number (no) | 19 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |