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HDR image compression using optimized tone mapping model
2009 IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 In this paper, we propose a coding algorithm for High Dynamic Range Images (HDRI). Our encoder applies a tone mapping model based on scaled μ-Lawencoding, followed by a conventional Low Dynamic Range Image (LDRI) encoder. The tone mapping model is designed to minimize the difference between the tone mappedHDRI and its LDR version.
OKUDA Masahiro +2 more
exaly +4 more sources
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Visually-favorable tone-mapping with high compression performance
2010 IEEE International Conference on Image Processing, 2010We develop a tone-mapping operator (TMO) that considers the perceptual quality of the tone-mapped image together with the compression efficiency. The proposed TMO is formulated as an optimization problem that incorporates statistical models of i) the quality of the tone-mapped image given a desired TMO, ii) the base layer bit-rate and iii) the ...
Rabab Kreidieh Ward +2 more
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Embedding high dynamic range tone mapping in JPEG compression
Proceedings of SPIE, 2013A method that integrates tone mapping for high dynamic range (HDR) gray-scale images with JPEG compression is proposed. The tone mapping operator (TMO) is block-based, and structured so that the same discrete cosine transform (DCT) that is used for the JPEG compression serves to complete a major part of the tone-mapping operation.
Jian Liu, Firas Hassan, Joan Carletta
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Compression Techniques are Lovable or Hateful: For Discrete Tone Images
2018 Second International Conference on Electronics, Communication and Aerospace Technology (ICECA), 2018The amount of data transmission especially images over internet are rapidly increasing day by day. The effective lossless image compression becomes a greater challenge now than ever. The efficiently compressed images can be useful to remotely access multimedia file at a faster rate with lesser burden on network infrastructure.
J Uthayakumar, T Vengattaraman
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HDR tone mapping algorithm based on difference compression with adaptive reference values
Journal of Visual Communication and Image Representation, 2017A new local tone mapping method using adaptive reference is proposed.The detailness metric is proposed to measure detail loss in bright and dark regions.An objective quality assessment is developed to optimize parameters.The proposed method shows a good balance between detailness and naturalness.
Chulhee Lee
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Lossless compression of continuous-tone images via context selection, quantization, and modeling
IEEE Transactions on Image Processing, 1997Context modeling is an extensively studied paradigm for lossless compression of continuous-tone images. However, without careful algorithm design, high-order Markovian modeling of continuous-tone images is too expensive in both computational time and space to be practical.
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A new kind of HDR image tone compression algorithm
Proceedings 2013 International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC), 2013null Lu Liang +3 more
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Effect of Perineal Compression on the Rectal Tone
Diseases of the Colon & Rectum, 2003Digital pressure on the perineum was reported to result in an increase of the rectal tone. This effect has been related to a reflex action named perineorectal reflex but was not verified. The mechanism of action of perineal pressure on the rectal tone was studied.Eighteen healthy volunteers (mean age +/- standard deviation, 39.7 +/- 11.8 years; 10 ...
Ahmed, Shafik +2 more
openaire +2 more sources