| Presentation | 2002/1/3 Unsharp Masking Based on Multiscale Gradient Planes Hidetoshi OKAZAKI, Makoto NAKASHIZUKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose new unsharp masking technique based on the multiscale gradient planes. The unsharp masking technique is implemented as a high-pass filter and improves the sharpness of degraded images. However, the conventional unsharp masking enhances the noise component simultaneously. To reduce the noise influence, we introduce the edge information as the difference of the gradient values between two consecutive scales of the multiscale gradient. The multiscale gradient indicates the presence of the image edge as the ratio between the gradients between two different scales by its multiscale nature. So, the enhancement by the proposed method does not depend on the variance of images and reduce the noise influence. In experiment, we demonstrate the enhancement result for blurred images and compare with the conventional cubic unsharp masking technique. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | image enhancement / unsharp masking / wavelet transform / multiscale analysis |
| Paper # | 2001-DSP-157,2001-SAT-115,2001-RCS-215 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2002/1/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Unsharp Masking Based on Multiscale Gradient Planes |
| Sub Title (in English) | |
| Keyword(1) | image enhancement |
| Keyword(2) | unsharp masking |
| Keyword(3) | wavelet transform |
| Keyword(4) | multiscale analysis |
| 1st Author's Name | Hidetoshi OKAZAKI |
| 1st Author's Affiliation | Graduate School of Bio-applications and Systems Engineering, Tokyo University of Agri. and Tech() |
| 2nd Author's Name | Makoto NAKASHIZUKA |
| 2nd Author's Affiliation | Graduate School of Bio-applications and Systems Engineering, Tokyo University of Agri. and Tech |
| Date | 2002/1/3 |
| Paper # | 2001-DSP-157,2001-SAT-115,2001-RCS-215 |
| Volume (vol) | vol.101 |
| Number (no) | 544 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |