| Presentation | 2013-07-11 A Fixed-Point Tone Mapping Operation for HDR Images Expressd in Floating-Point Data Toshiyuki DOBASHI, Tatsuya MUROFUSHI, Masahiro IWAHASHI, Hitoshi KIYA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a tone mapping operation (TMO) with fixed-point arithmetic for high dynamic range (HDR) images expressed in RGBE format. A TMO generates a low dynamic range (LDR) image from a HDR image by compressing its dynamic range.In general, it uses floating-point arithmetic because HDR images are floating-point data.Because of this, it requires huge computational cost even though a resultant LDR image is a integer data. The proposed method treats a floating-point number as two integer numbers which correspond to a exponent part and a mantissa part. Moreover, by branching and approximation of some calculations, the method can perform all calculation of a TMO with only fixed-point arithmetic. Experimental results shows the PSNR of LDR images in the proposed method are comparable to those of the conventional methods. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | tone mapping / high dynamic range / fixed-point / floating-point |
| Paper # | CAS2013-7,VLD2013-17,SIP2013-37,MSS2013-7 |
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| Conference Information | |
| Committee | MSS |
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| Conference Date | 2013/7/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Mathematical Systems Science and its applications(MSS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Fixed-Point Tone Mapping Operation for HDR Images Expressd in Floating-Point Data |
| Sub Title (in English) | |
| Keyword(1) | tone mapping |
| Keyword(2) | high dynamic range |
| Keyword(3) | fixed-point |
| Keyword(4) | floating-point |
| 1st Author's Name | Toshiyuki DOBASHI |
| 1st Author's Affiliation | Tokyo Metropolitan University() |
| 2nd Author's Name | Tatsuya MUROFUSHI |
| 2nd Author's Affiliation | Tokyo Metropolitan University |
| 3rd Author's Name | Masahiro IWAHASHI |
| 3rd Author's Affiliation | Nagaoka University of Technology |
| 4th Author's Name | Hitoshi KIYA |
| 4th Author's Affiliation | Tokyo Metropolitan University |
| Date | 2013-07-11 |
| Paper # | CAS2013-7,VLD2013-17,SIP2013-37,MSS2013-7 |
| Volume (vol) | vol.113 |
| Number (no) | 121 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |