Encyclopedia of Color Science and Technology

Living Edition
| Editors: Ronnier Luo

Image Quality

  • Herzog Robert
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27851-8_178-1

Synonyms

Definition

Image quality is commonly characterized as the perceived image degradation with respect to an ideal undistorted image.

Overview

For many applications in research and industry, there is a constant need for quality assessment of images (e.g., computer graphics, image compression, camera manufactures, medical imaging).

Image quality cannot be formalized in general since it plays a different role depending on the application. For example, in lossy compression and streaming, the perceived quality-to-bit rate ratio with respect to a reference image needs to be maximized, whereas in computer vision, forensic, and medicine, the image quality is driven by task performance(i.e., how much semantic information is conveyed in the image). In photo-realistic image synthesis (e.g., 3D computer games, movies), image quality can be regarded as a measure of realism (photography versus rendered image). Moreover, in art and in particular in...

Keywords

Video Quality Human Visual System Mean Opinion Score Image Quality Assessment Video Quality Metrics 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Max-Planck Institute for InformaticsSaarbrückenGermany