The Perception of Chromatic Noise on Different Colors
Abstract:A paired comparison psychophysical experiment was conducted to investigate the perception of chromatic noise. Interestingly, chromatic noise on a grey patch was less visible than on chromatic patches. Among chromatic patches, chromatic noise on a purple patch was the most visible and chromatic noise on orange, yellow, or green patch was less visible. Then a heterochromatic brightness matching experiment was conducted and it was suggested that this perception of chromatic noise could be explained by the Helmholtz-Kohlrausch effect. The gradient of the luminance of the same brightness was shown to have a correlation with the chromatic noise visibility. Thus the chromatic noise was perceived not only as chromatic noise but also as brightness noise that should be more sensitive for the human vision. Due to the dependency of the Helmholtz-Kohlrausch effect on hue and chroma, the visibility of chromatic noise should depend on the colors of the patches.
Document Type: Research Article
Publication date: January 1, 2011
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, and a vibrant interactive papers session. An endearing symbol of the meeting is the Cactus Award, given each year to the author(s) of the best interactive paper presentation.
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