Calculating the lightness of areas in a single plane

@inproceedings{McCann2000CalculatingTL,
  title={Calculating the lightness of areas in a single plane},
  author={John J. McCann},
  booktitle={Human Vision and Electronic Imaging},
  year={2000}
}
A wide variety of different mechanisms have been proposed to account for what we see. Land and McCann 2 proposed a spatial comparison extending Wallach’s 3 observation about the importance of edge ratios. Stockham 4 suggested low-spatial frequency filtering. Gilchrist , Adelson and Logvinenko all suggested mechanisms in which apparent depth altered the appearance of lightness. The problem raised by Land and McCann was whether spatial comparisons could be used to separate reflectance from… CONTINUE READING

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Cornsweet, “Visual Perception

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Lightness from Early Vision Spatial Comparisons, Mid Vision Junctions or High Vision Perceptions : The Debate Part 2

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He managed the Vision Research Laboratory at Polaroid from 1961 to 1996

  • Biography John McCann received his B.A. degree in Biology fr in
  • His work concentrated on research in human color…
  • 1964
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