In this paper a new colour space for content based image retrieval is presented, which is based upon psychophysical research into human perception. It provides both the ability to measure similarity and determine dissimilarity, using fuzzy logic and psychologically based set theoretic similarity measurement. These properties are shown to be equal or superior to conventional colour spaces. Examp...

3D ink-jet printing is an additive, powder-based rapid prototyping (RP) process. The 3D printing process described in this overview has been developed by ZCorporation and is based on an ink-jet printing technique. The 3D computer models, created by 3D scanning or in 3D CAD modelling software, are built layer by layer from the basic materials of powder and binders. Due to the basic build princip...

The hadronization effects induced by different colour connections of cc̄qq̄ system in e+e− annihilation are investigated by a toy model where diquark fragmentation is employed based on Pythia. It is found that the correlations between the charm baryons and charm antibaryons produced via diquark pair fragmentation are much stronger, and their momentum spectra are harder than those from the standar...

REFERENCES [1] D.L. MacAdam, “The theory of the maximum visual efficiency of colour materials”, J. Opt. Soc. Am, 25, 249 (1935). [2] D.L. MacAdam, “Maximum visual efficiency of coloured materials”, J. Opt. Soc. Am., 25, 316 (1935). [3] F. Martínez-Verdú, E. Perales, E. Chorro, D. de Fez, V. Viqueira, and E. Gilabert, “Computation and visualization of the MacAdam limits for any lightness, hue an...

Colour mixing by a halftoning process, as used for colour reproduction in graphic arts and many forms of digital hardcopy, is neither additive nor subtractive. Halftone colour reproduction with a given set of primary colours is heavily influenced not only by the colourimetric properties of the full-tone primaries, but also by effects such as optical and physical dot gain and the halftone geomet...

High dynamic range (HDR) displays capable of reproducing scenes of high luminance (exceeding 2,000 cd/m2) and contrast (more than 10,000:1) are a useful tool for research on visual performance, image quality or colour appearance. In this paper, we describe a projector-based HDR display, giving details on its hardware components and software for driving and calibrating the display. We report the...

Embodied theories of cognition hold that mentally representing something red engages the neural subsystems that respond to environmental perception of that colour. This paper examines whether implicit perceptual information on object colour is represented during sentence comprehension even though doing so does not necessarily facilitate task performance. After reading a sentence that implied a ...