Perception, visual color matching

Successful visual color matching requires a good understanding of the nature of color, how color is perceived, the influence of the physiological and psychological processes of color perception, the human element variability, and the ability to evaluate or assess an individual s color acuity. Next, it is important to define and... 

However, even with the presence of many color modes that are applied in many systems, total color matching is difficult to achieve because its assessment depends on visual perception. Therefore, a margin of error exists and is dependent upon the hardware, software and the human visual perception. In daily practice, medical silicone skin color matching is very difficult task to achieve. Therefore, more research is needed. A logical way to approach this problem is by determining the range of skin colors at different locations and then search for the best color formulation that produces the best color match. The objective of this study... 

Chi-square was used to investigate the significance of color matching of each device depending on visual perception. 

The importance of tuning color is clear. Illumination and display applications are based on precise quantitative standards to express the color emitted by a material or by a device and received by the human eye. A widely used definition is that provided by the Commission Internationale de I Eclairage (CIE), associating three coordinates (X, Y, Z) to colors as visualized by humans. These coordinates are given by the normalized projection of the emission spectrum onto three so-called Color Matching Functions, x(X), y(X) and z(X), which are in turn directly related to the perception response of the human eye " ... 

A color matcher can also work within a two-dimensional slice of the three-dimensional color system shown in Figure 5.4. The perceived color trial match is often then described in a two-dimensional arena of value versus chroma, as shown in Figure 5.5. This representation depicts the perceived color in terms of whiter versus deeper, cleaner versus dirtier, and weaker versus stronger. These visual perceptions then direct the color matcher to make... 

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