Byrne & Hilbert (B&H) argue that colors are reflectance properties of objects. They also claim that a necessary condition for something’s being a color is that it causally explain – or be causally implicated in the explanation of – our perceptions of color. I argue that these two positions

Behind each facet of the compound eye, bees have photoreceptors for ultraviolet, green, and blue wavelengths that are excited by sunlight reflected from the surrounding panorama. In experiments that excluded ultraviolet, bees learned to distinguish between black, gray, white, and various colors. To distinguish two targets of differing color, bees detected, learned, and later recognized the stro...

colors influence mood and mental state of human beings and since manis constantly in touch with colors, great important will be attached to thecolors. exercise is also associated with different colors and is performed inan environment full of different colors. also, one of the important factorsaffecting athletes' success is response to the stimulus. considering theimportance of color and r...

Considering some existing shortcomings in traffic flow statistics algorithm based on background subtraction and virtual loop, according to the change discipline of inter-frame similarity while vehicles passing in and out the virtual loop, we come up with a traffic flow statistics algorithm based on inter frame similarity, which is able to overcome two problems: one is missed inspection since so...

the purpose of this study was to investigate the brain activation patterns in response to thehuman color preference by using a functional magnetic resonance imaging (fmri). a total of 31 healthyhumans without color blindness were participated in this study. the brain activation was induced by viewingof eight different colors: black, gray, blue, green, earthy yellow, red, yellow and white. the q...

there is no doubt that colors are important factors in creating arts including poetry. the poets use them because of their visual beauties to show their hidden values. sometimes they go further – beyond the external features – ad use colors as symbols to express their own meaning. moreover, modern poet’s deep insight and vision are the main causes to change the colorful portrait to a bright won...

People with color-graphemic synesthesia experience vivid, reliable color upon viewing achromatic alphanumeric characters. Recent evidence indicates that synesthetic color experiences are as perceptually real as actual colors are for non-synesthetic observers. To investigate possible interactions between real and synesthetic colors, we tested two adult color-graphemic synesthetes on a pair of pe...

Identification of linear parameter-varying systems in an input-output setting is investigated, focusing on the case when the noise part of the data generating system is an additive colored noise. In the Box-Jenkins and output-error cases, it is shown that the currently available linear regression and instrumental variable methods from the literature are far from being optimal in terms of bias a...

Unlike the Metelli monochrome transparencies, when overlays and their backgrounds have chromatic content, the inferred surface colors may not always be physically realizable, and are in some sense "imaginary." In these cases, the inferred chromatic transmittance or reflectance of the overlay lies outside the RGB spectral boundaries. Using the classical Metelli configuration, we demonstrate this...