TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Evaluation of Various Tone Mapping Operators for Backward Compatible JPEG Image Coding |
| 영문제목(English Title) |
Evaluation of Various Tone Mapping Operators for Backward Compatible JPEG Image Coding |
| 저자(Author) |
Seungcheol Choi
Oh-Jin Kwon
Dukhyun Jang
Seokrim Choi
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| 원문수록처(Citation) |
VOL 09 NO. 09 PP. 3672 ~ 3684 (2015. 09) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Recently, the standardization of backward compatible JPEG image coding for high dynamic range (HDR) image has been undertaken to establish an international standard called “JPEG XT.” The JPEG XT consists of two layers: the base layer and the residual layer. The base layer contains tone mapped low dynamic range (LDR) image data and the residual layer contains the error signal used to reconstruct the HDR image. This paper gives the result of a study to evaluate the overall performance of tone mapping operators (TMOs) for this standard. The evaluation is performed using five HDR image datasets and six TMOs for profiles A, B, and C of the proposed JPEG XT standard. The Tone Mapped image Quality Index (TMQI) and no reference image quality assessment (NR IQA) are used for measuring the LDR image quality. The peak signal to noise ratio (PSNR) is used to evaluate the overall compression performance of JPEG XT profiles A, B, and C. In TMQI and NR IQA measurements, TMOs using display adaptive tone mapping and adaptive logarithmic mapping each gave good results. A TMO using adaptive logarithmic mapping gave good PSNRs.
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| 키워드(Keyword) |
JPEG XT
backward compatible image coding
high dynamic range image
performance evaluation
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| 파일첨부 |
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