Why is image quality assessment so difficult?

@article{Wang2002WhyII,
  title={Why is image quality assessment so difficult?},
  author={Zhou Wang and Alan C. Bovik and Ligang Lu},
  journal={2002 IEEE International Conference on Acoustics, Speech, and Signal Processing},
  year={2002},
  volume={4},
  pages={IV-3313-IV-3316}
}
Image quality assessment plays an important role in various image processing applications. A great deal of effort has been made in recent years to develop objective image quality metrics that correlate with perceived quality measurement. Unfortunately, only limited success has been achieved. In this paper, we provide some insights on why image quality assessment is so difficult by pointing out the weaknesses of the error sensitivity based framework, which has been used by most image quality… CONTINUE READING

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