Sooner or later, but almost every experienced user of an average computer has a need to understand what a color model is. This information is also useful for broadening one's horizons.
So, by the color model it is customary to understand such an abstract thing in which each color is represented in a certain set of numbers. Any such model, of course, has its own characteristics and disadvantages. The color model is often associated with language. For example, the word “table” is written and sounds differently in all, but there is only one semantic load.It should be noted that today there are a large number of variations of color models, but in this article we will consider only RGB colors.
Story
In 1861, Maxwell made an interesting proposal to use everywhere such a method of obtaining a conventional color image, which later became widely known as "additive color fusion." Under the additive color rendering system, it was customary to understand the usual fusion of colors by adding each to black. The additive system was conditionally subdivided into perceptual and hardware-dependent.
So already in 1931, the RGB color system was successfully standardized. The International Lighting Commission has adopted the CIE 1931 XYZ color space, which is considered basic to this day.
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A feature of the RGB color model is that here a new color is obtained by adding shades of existing primary colors, that is, they are sequentially “mixed”.It is important to note that this model is often used precisely in numerical form, but not in visual. Moreover, for visual selection, slightly different color models are used. The thing is that the visual model of RGB color is a small cube in three planes, which is not convenient enough to use when working, say, a programmer or designer.
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