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Volume: 5 | Article ID: art00046
Blur tolerance and perceived sharpness in the chromatic and luminance domain
  DOI :  10.2352/CIC.1997.5.1.art00046  Published OnlineJanuary 1997

We measured blur thresholds for square wave gratings modulated either along the red-green, the luminance or the yellow-blue colour direction. The modulations along the red-green and yellow-blue resulted in zero luminance variation. For all three observers the blur thresholds for red-green and luminance stimuli were very similar. The blur thresholds for yellow-blue were much higher. These results are consistent with the idea that the luminance and red-green channels do not differ in their inherent spatial resolution.

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Huw C. Owens, Stephen Westland, Sophie Wuerger, "Blur tolerance and perceived sharpness in the chromatic and luminance domainin Proc. IS&T 5th Color and Imaging Conf.,  1997,  pp 235 - 239,

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