ABSTRACT
The concept of color is both connected with light and its properties and how human vision interprets light. Light itself is a pure physical notion and can be thought of as a collection of electromagnetic waves with different wavelengths. The color model, most often used in rendering as well as required in various monitors is an red, green and blue (RGB) color model. In this model to get colors three basic colors, Red, Green and Blue, are mixed in various proportions. The RGB color model is simple, intuitive and works well with light-emitting devices and digital cameras. There is one more interesting fact about human vision – it has a non-linear response to light energy. Both CIEXYZ and RGB color models use sensitivity curves to measure light energy. Widely used in various devices such as LCD monitors, digital cameras, scanners and many others is the sRGB color space, created by HP and Microsoft.
