Color constancy is the ability to correctly perceive an object’s color regardless of illumination. Within the controlled, color-coded environments in which many robots operate (such as RoboCup), engineers have been able to avoid the color constancy problem by using straightforward mappings of pixel values to symbolic colors. However, for robots to perform color vision tasks under natural light ...

Color is one of the most important and easily identifiable features for describing the visual content. The MPEG standard has developed a number of descriptor that covers different aspects of the visual content. Dominant color descriptor is one of them. This paper proposes a channelized binning approach, a novel method for extraction of dominant color pixel value, which is a variant of dominant ...

In many applications of color technology such as spectral color reproduction it is of interest to represent the spectral data with lower dimensions than spectral space’s dimensions. It is more than half of a century that Principal Component Analysis PCA method has been applied to find the number of independent basis vectors of spectral dataset and representing spectral reflectance with lower di...

The CIELAB based CIEDE2000 colour difference formula to measure small to medium colour differences is the latest standard formula of today which incorporates different corrections for the non uniformity of CIELAB space. It also takes account of parametric factors. In this paper, we present a mathematical formulation of the CIEDE2000 by the line element to derive a Riemannian metric tensor in a ...

Autocorrelation and cross-correlation have been defined and utilized in signal and image processing for many years, but not for color or vector images. In this poster we present for the first time a definition of correlation applicable to color images, based on quaternions or hypercomplex numbers. We have devised a visualization of the result using the polar form of a quaternion in which color ...

I motivate and defend a previously underdeveloped functionalist account of the metaphysics color, view that call ‘quality-space functionalism’ about color. Although other theorists have proposed varieties color functionalism, this differs from such accounts insofar as it identifies individuates colors by their relative locations within particular kind so-called ‘quality space’ reflects creature...