Contributions of contour frequency, amplitude, and luminance to the watercolor effect estimated by conjoint measurement

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Contributions of contour frequency, amplitude, and luminance to the watercolor effect estimated by conjoint measurement.

The watercolor effect is a long-range, assimilative, filling-in phenomenon induced by a pair of distant, wavy contours of different chromaticities. Here, we measured joint influences of the contour frequency and amplitude and the luminance of the interior contour on the strength of the effect. Contour pairs, each enclosing a circular region, were presented with two of the dimensions varying ind...

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When bounded by a line of sufficient contrast, the desaturated hue of a colored line will spread over an enclosed area, an effect known as the watercolor illusion. The contrast of the two lines can be in luminance, chromaticity, or a combination of both. The effect is most salient when the enclosing line has greater contrast with the background than the line that induces the spreading color. In...

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ژورنال

عنوان ژورنال: Journal of Vision

سال: 2014

ISSN: 1534-7362

DOI: 10.1167/14.4.9