| Presentation | 2000/6/15 Enhancement of multichannel signals by histogram modification Yoshinori IKEDA, Akira TAGUCHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Enhancement of multichnnel signals is one of important problem in signal processing field. Color image is one of typical multichannel signals. Contrast enhancement of color images useful for facilitating the photo-interpretation and analysis of images.This is useful in unmerous applications, such as the analysis of reconnaissance images, remote sensing, and industrial inspection. Contrast enhancement can be achieved by modifying the pixel color values in order to obtain a better utilization of the available color space. Histogram processing of color images usually performed by independent processing of three components (e. g., R, G, and B signals or Y, I, and Q signals). However, this method is unable to exploit the full extent of colors available. Recently, Mlsna proposed the histogram explosion (HE) technique that performs full 3-D processing and procedures output image whose histograms approach the full display gamut. However, since color components are not separated for processing, histogram explosion requires more computation. In order to conquer the defect of computational effert of the HE technique, Mlsna also proposed a contrast enhancement method. which is called the histogram decimation (HD) method, in RGB space. The HD method shows the excellent performance. However, some points are should be improved. In this paper, we propose a modified HD (MHD) method. The proposed method realize almost an ideal enhancement result (i. e., the distribution of transformed signals' histogram is almost uniform distribution). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multichannel signal / contrast enhancement / histogram modification / median value |
| Paper # | CAS2000-2,VLD2000-11,DSP2000-23 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 2000/6/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Enhancement of multichannel signals by histogram modification |
| Sub Title (in English) | |
| Keyword(1) | multichannel signal |
| Keyword(2) | contrast enhancement |
| Keyword(3) | histogram modification |
| Keyword(4) | median value |
| 1st Author's Name | Yoshinori IKEDA |
| 1st Author's Affiliation | Department of Electrical and Electronic Electronic Engineering, Musashi Institute of Technology() |
| 2nd Author's Name | Akira TAGUCHI |
| 2nd Author's Affiliation | Department of Electrical and Electronic Electronic Engineering, Musashi Institute of Technology |
| Date | 2000/6/15 |
| Paper # | CAS2000-2,VLD2000-11,DSP2000-23 |
| Volume (vol) | vol.100 |
| Number (no) | 122 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |