49. Measuring image artifacts - JPEG ringing - 2011

49. Measuring image artifacts - JPEG ringing - 2011 -...

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EI 2006 - San Jose, CA Slide No. 1 Measurement of Ringing Artifacts in JPEG Images* Xiaojun Feng Jan P. Allebach Purdue University - West Lafayette, IN * Research supported by the Hewlett-Packard Company
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EI 2006 - San Jose, CA Slide No. 2 Motivation Applications Image quality assessment through measuring JPEG artifact perceptibility Automated workflow for variable data printing Goal Develop objective no-reference measurement of visual impact for ringing artifacts in JPEG compressed images.
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EI 2006 - San Jose, CA Slide No. 3 Prior Art Full-reference approach – Marziliano et al. (2004) Usually perfect reference image is not available No-reference approach – Oguz (1999) Texture of ringing artifacts is not compared with a neighboring smooth region
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EI 2006 - San Jose, CA Slide No. 4 Outline What is ringing artifact Proxy object System detail Sample results Conclusions and future work
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Slide No. 5 Overview of ringing artifacts Characteristics of ringing artifact Ringing artifact is seen to be noise-like variations in the vicinity of major edges. Activity of the ringing region is higher than that of
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49. Measuring image artifacts - JPEG ringing - 2011 -...

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