Colour constancy is traditionally defined as the invariance of perceived surface colours under changes in the spectral composition of the illuminant. Existing quantitative studies show that, by this definition, human subjects show poor colour constancy. A different and complementary aspect of colour constancy is considered which is concerned with the ability of a subject to attribute correctly ...

The phenomenon of colour constancy in human visual perception keeps surface colours constant, despite changes in their reflected light due to changing illumination. Although colour constancy has evolved under a constrained subset of illuminations, it is unknown whether its underlying mechanisms, thought to involve multiple components from retina to cortex, are optimised for particular environme...

The one-loop polarisation tensor and the propagation of " in-medium " photons of colour superconductors in the 2SC and CFL phase is discussed. For a study of thermal corrections to the low energy effective theory in the 2SC phase, a classical transport theory for fermionic quasiparticles is invoked.

Translucence is an important property of natural materials, and human observers are adept at perceiving changes in translucence. Perceptions of different material properties appear to arise from different cortical regions, and it is therefore plausible that the perception of translucence is dependent on specialised regions, separate from those important for colour and texture processing. To tes...

This article looks into the possibility of transmitting different colours in 3D-printed lamps using thicknesses plastic. During this work, an experimental stand was created to review quality, structure, colour and translucency printed elements. The analysis decorative properties plastic depending on environment carried out. determined such characteristics coating as colour, saturation, purity w...

Broerse and O'Shea [(1995) Vision Research, 35, 207-226] proposed that the subjective colours in McCollough effects (MEs) consist of two components: edge colours appearing along the edges of contours, and spread colours radiating from edge colours into adjacent uncontoured regions of test patterns. This proposal was examined in five experiments. First, we demonstrated that fine coloured lines l...

Colour and spectral images gain more interest in all types of applications of digital image processing. Even in geometric measurement, where the colour information is usually of minor importance, the number of tasks in which the colour information becomes useful is rising. Sometimes it is just a question of usability for the human operator of the system, in other cases the measurement could be ...

Music is associated to colors since ancient years. Different mappings between attributes of sound and images allow the efficient conversion between the two types of media. The proposed method for converting images to music using the concept of chromaticism provides the area of computer music with a parameterized environment for audio-visual presentations. The auditory display of colour images m...

The present study was conducted to analyze the physico-chemical and colour properties of emu meat. The leg, back and breast portion along with a uniform mix of these three cuts were taken for evaluation of emu meat quality in respect to various physico-chemical parameters. The pH of breast meat was found significantly (P<0.05) lower than meat from leg and back portion. Water holding capacity of...

A range of silicone rubbers were created based on existing commercially available materials. These silicones were designed to be visually different from one another and have distinct material properties, in particular, ultimate tensile strengths and tear strengths. In total, eleven silicone rubbers were manufactured, with the materials designed to have a range of increasing tensile strengths fr...