Effect of Spatial Frequency on Chromatic Induction
Previous studies reported that spatial properties are the main factor determining the transition from assimilation to contrast. With high spatial frequency stimuli, assimilation occurs. With low spatial frequency stimuli contrast occurs. With intermediate spatial frequencies, variable effects are seen. The purpose of this study is to investigate the mechanisms of the induction. To achieve this goal we measured the induction effects for different stimulus spatial frequencies (0.8, 4.0, 6.0, and 9.0 cpd) to determine the transitional spatial frequency between assimilation and contrast. The use of a cone excitation space allows analysis of the spatial frequency effects on SWS and LWS/MWS cones chromatic pathways separately. A spread light model was developed to see whether optical factors might account for all or part of the assimilation effect.
Document Type: Research Article
Publication date: January 1, 1995
CIC is the premier annual technical gathering for scientists, technologists, and engineers working in the areas of color science and systems, and their application to color imaging. Participants represent disciplines ranging from psychophysics, optical physics, image processing, color science to graphic arts, systems engineering, and hardware and software development. While a broad mix of professional interests is the hallmark of these conferences, the focus is color. CICs traditionally offer two days of short courses followed by three days of technical sessions that include three keynotes, an evening lecture, a vibrant interactive (poster) papers session, and workshops. An endearing symbol of the meeting is the Cactus Award, given each year to the author(s) of the best interactive paper; there are also Best Paper and Best Student Paper awards.
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