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Methods of Subjective Image Quality Evaluation in Pictorial Images

사진의 주관적 화질 평가 방법; 요인 분석을 통한 평가 항목 선정을 중심으로

  • 노연숙 (중앙대학교 첨단영상대학원 영상예술학과) ;
  • 하동환 (중앙대학교 첨단영상대학원 영상학과)
  • Received : 2010.05.13
  • Accepted : 2010.06.28
  • Published : 2010.08.28

Abstract

Recent changes show that the goals of reproduction devices have changed from accurately reproducing scenes to improving user preference. It implies that the directions in developing cameras, the most common reproduction devices, are moving from performance-centered to quality-centered, from developers to users. Accepting such changes demand new standards in evaluating reproduction devices. This paper suggests a new method to evaluate the quality of images, based on cognitive properties of users. The quality of an image is a result oriented from the interaction of various attributes, therefore some functional tests are not enough to evaluate total quality of an image. In this respect, an evaluation model which integrates various physical attributes of an image is needed, that enables a third observer to subjectively evaluate the total quality of an image. In this paper, the experiment was carried out to 127 subjects, with the 84 test stimuli and 11 evaluation factors, followed by an factor analysis. The evaluation factors to assess the quality of images in this paper includes the results by cognitions of users and the properties of reproduction, the factors not only evaluate the quality but suggest how to improve them.

Keywords

Digital Camera;Image Quality;Evaluation;Emotion;Photography

Acknowledgement

Supported by : 삼성 전자(주)

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Cited by

  1. Linguistic Analysis of Human Sensibility in Various Pictorial Images vol.12, pp.2, 2012, https://doi.org/10.5392/JKCA.2012.12.02.182