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Perceptual Jpeg Compliant Coding By Using Dct-Based Visibility Thresholds Of Color Images

Kuo-Cheng Liu
2013 Zenodo  
The simulation results show that the JPEG coder integrated with the proposed DCT-based JND model gives better coding bit rates at visually lossless quality for a variety of color images.  ...  In order to verify the proposed model, the JND estimator is incorporated into the conventional JPEG coder to improve the compression performance.  ...  ) by using the JPEG coder with the perceptually tuned preprocessor (a) (b) (c) (d) (e) (f) IV.  ... 
doi:10.5281/zenodo.1086636 fatcat:jxwngxlxafbzxeful2wyuynad4

Perceptual coders and perceptual metrics

Junqing Chen, Thrasyvoulos N. Pappas, Bernice E. Rogowitz, Thrasyvoulos N. Pappas
2001 Human Vision and Electronic Imaging VI  
We consider three di erent t ypes of coders: JPEG, the Safranek-Johnston perceptual subband coder (PIC), and the Said-Pearlman SPIHT algorithm with perceptually weighted subband quantization, based on  ...  wavelet coders performing best for smoother images.  ...  H ontsch et al. 12 proposed a perceptually tuned EZW image coder that uses perceptual weighting of the wavelet transform coe cients prior to EZW encoding.  ... 
doi:10.1117/12.429485 dblp:conf/hvei/ChenP01 fatcat:2b64jpf55ramdh62tudaopl3pm

Spatial quantization via local texture masking

Matthew D. Gaubatz, Damon M. Chandler, Sheila S. Hemami, Bernice E. Rogowitz, Thrasyvoulos N. Pappas, Scott J. Daly
2005 Human Vision and Electronic Imaging X  
Wavelet-based transform coding is well known for its utility in perceptual image compression.  ...  Psychovisual modeling has lead to a variety of perceptual quantization schemes, for efficient at-threshold compression.  ...  Finally, a perceptual test was conducted to compare the performance of the proposed coder with that of JPEG-2000.  ... 
doi:10.1117/12.597508 dblp:conf/hvei/GaubatzCH05 fatcat:ononhn7cx5hgzn3gpm3fynnokm

Prediction error preprocessing for perceptual color image compression

Kuo-Cheng Liu
2012 EURASIP Journal on Image and Video Processing  
The preprocessor is further applied to the input color image of the JPEG and JPEG2000 coders for better performance.  ...  In this article, a prediction error preprocessor based on the just noticeable distortion (JND) for the color image compression scheme is presented.  ...  The estimated JND profile is incorporated to tune the step size of a uniform quantizer in the proposed subband image coder. In [6] , a model of the HVS based on the wavelet transform was proposed.  ... 
doi:10.1186/1687-5281-2012-3 fatcat:rqplasr2s5c3jo6xv7dccahryu

Adaptive image coding with perceptual distortion control

I. Hontsch, L.J. Karam
2002 IEEE Transactions on Image Processing  
This paper presents a discrete cosine transform (DCT)-based locally adaptive perceptual image coder, which discriminates between image components based on their perceptual relevance for achieving increased  ...  The new coder uses a locally adaptive perceptual quantization scheme based on a tractable perceptual distortion metric.  ...  Figs. 3 and 4 compare the performance of the proposed distortion-controlled locally adaptive perceptual coder with the DC-Tune coder [17] , [18] in terms of PSNR and the perceptual distortion measure  ... 
doi:10.1109/83.988955 pmid:18244625 fatcat:ktygcxyg4jhdtpao3ynp25hnme

Subjective Image Quality Tradeoffs Between Spatial Resolution and Quantization Noise

Soo Hyun Bae, Thrasyvoulos N. Pappas, Biing-hwang Juang
2006 2006 International Conference on Image Processing  
Analysis of the subjective results using a wavelet-based perceptual quality metric verifies our earlier conclusion that human observers tend to reduce resolution in order to maintain image quality, but  ...  For the JPEG encoding, we introduced the perceptually tuned visibility threshold for the discrete cosine transform (DCT) at six image heights, which was proposed by Watson [2] .  ...  Here k denotes the subband index and i the coefficient location in the subband image.  ... 
doi:10.1109/icip.2006.312927 dblp:conf/icip/BaePJ06 fatcat:cej3h2v6wzbvho755srbm7zxga

Image Quality Assessment [chapter]

Kalpana Seshadrinathan, Thrasyvoulos N. Pappas, Robert J. Safranek, Junqing Chen, Zhou Wang, Hamid R. Sheikh, Alan C. Bovik
2009 The Essential Guide to Image Processing  
Watson's model was developed as a means to compute the perceptually optimal image dependent quantization matrix for DCT-based image coders like JPEG.  ...  Safranek-Johnston Perceptual Image Coder (PIC) The Safranek-Johnston PIC image coder was one of the first image coders to incorporate an elaborate perceptual model [37] .  ... 
doi:10.1016/b978-0-12-374457-9.00021-4 fatcat:iornqix5cjaffkglvivdlx6gva

Anti-forensics of digital image compression

Matthew C. Stamm, K.J. Ray Liu
2011 IEEE Transactions on Information Forensics and Security  
We then use this framework to develop anti-forensic techniques specifically targeted at erasing compression fingerprints left by both JPEG and wavelet-based coders.  ...  We do this by first developing a generalized framework for the design of anti-forensic techniques to remove compression fingerprints from an image's transform coefficients.  ...  In most quantization tables, larger quantization step sizes are used for high-frequency DCT subbands because changes to these subbands are less perceptually significant.  ... 
doi:10.1109/tifs.2011.2119314 fatcat:2m52cotd2za3tlnxadw57s2qhi

Perceptually-based robust image transmission over wireless channels

M.E. Buckley, M.G. Ramos, S.S. Hemami, S.B. Wicker
2000 Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)  
The perceptually-based image coder consists of a wavelet transformation, uniform quantization, and variable-length entropy encoding.  ...  A robust image transmission system incorporating perceptually-based coding and error protection is proposed for wireless channels.  ...  SOURCE CODING SYSTEM The image coder presented in [7] provides a spatially scalable stream divided into segments of varying perceptual importance and tolerance to transmission errors, making the coder  ... 
doi:10.1109/icip.2000.899244 dblp:conf/icip/BuckleyRHW00 fatcat:fexctxkyfjce3dkuhfxntlzj5u

A survey of perceptual image processing methods

A. Beghdadi, M.-C. Larabi, A. Bouzerdoum, K.M. Iftekharuddin
2013 Signal processing. Image communication  
This paper presents an overview of perceptual based approaches for image enhancement, segmentation and coding.  ...  Therefore, for each topic, we identify the main contributions of perceptual approaches and their limitations, and outline how perceptual vision has inuenced current state-of-the-art techniques in image  ...  JPEG XR JPEG XR [153, 207] is the latest compression standard of the JPEG family developed as a potential coder for extended range images.  ... 
doi:10.1016/j.image.2013.06.003 fatcat:maiih2fhvjdb3aq6lkb23ltfiy

Video Compression for Desktop Applications

Lawrence A. Rowe
1995 it - Information Technology  
This paper discusses the current state of compression for digital video on the desktop.  ...  Today there are many choices for video compression that yield different performance in terms of compression factor, quality, bitrate, and cost.  ...  Perceptual Coding Much work remains to be done understanding the human visual system and developing models that can be used to implement better coders.  ... 
doi:10.1524/itit.1995.37.4.7 fatcat:rr4pyzitfzg6viujkkjaba4pa4

Multiresolution Coding Of Image And Video Signals

B. Girod, Frank Hartung, Uwe Horn
1998 Zenodo  
Note that reconstruction based on only a subset of subbands can be problematic in terms of perceptual quality, especially for nely tuned, long lters.  ...  The subband signals are quantized and encoded using appropriate xed or, better, variable length coders.  ... 
doi:10.5281/zenodo.36714 fatcat:lhqswqbedjhsxferb3onwv6hza

JPEG-compliant perceptual coding for a grayscale image printing pipeline

R.A. Vander Kam, Ping Wah Wong, R.M. Gray
1999 IEEE Transactions on Image Processing  
We describe how the frequency-domain effects of scaling and halftoning may be measured, and how to account for those effects in an iterative design procedure for the JPEG quantization table.  ...  We describe a procedure by which Joint Photographic Experts Group (JPEG) compression may be customized for gray-scale images that are to be compressed before they are scaled, halftoned, and printed.  ...  Chou and the anonymous reviewers for their very helpful comments and suggestions.  ... 
doi:10.1109/83.736675 pmid:18262860 fatcat:zwa7yqvylrdohft27keqdjvooi

Orientation adaptive subband coding of images

D. Taubman, A. Zakhor
1994 IEEE Transactions on Image Processing  
approaches such as the JPEG compression standard.  ...  The proposed subband coding scheme utilizes orientation of local image features to avoid the highly objectionable Gibbs-like phenomena observed at reconstructed image edges with conventional subband schemes  ...  subband coders.  ... 
doi:10.1109/83.298396 pmid:18291940 fatcat:tag6ggausfhdtmktbho3jlw7iu

Dual Domain Watermarking for Authentication and Compression of Cultural Heritage Images

Y. Zhao, P. Campisi, D. Kundur
2004 IEEE Transactions on Image Processing  
The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Ioannis Pitas.  ...  The approach is implemented as a DCT-DWT dual domain algorithm and is applied for the protection and compression of cultural heritage imagery.  ...  Simulations have also been performed using the JPEG coder but the compressed images have not been reported for sake of brevity.  ... 
doi:10.1109/tip.2003.821552 pmid:15376933 fatcat:hywpl3o72nhtblong43yqjlu24
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