Rgb colour model
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The RGB color model uses additive color mixing of red, green, and blue light to produce various colors. It is the model used for color displays like computer and TV screens. The RGB color space is represented as a cube with red, green, and blue forming the axes and varying levels of each component from 0 to 1 producing different colors that combine to make white at maximum values. This model directly reflects how true color displays produce colors and is used for computer graphics and digital images but not print production which uses the CMYK subtractive color model.
![RGB Model/Additive
color model
In this model, the primary colors are red, green, and
blue. It is an additive model, in which colors are
produced by adding components, with white having
all colors present and black being the absence of any
color.
This is the model used for active displays such as
television and computer screens.
The RGB model is usually represented by a unit cube
with one corner located at the origin of a three-
dimensional color coordinate system, the axes being
labeled R, G, B, and having a range of values [0, 1].
The origin (0, 0, 0) is considered black and the
diagonally opposite corner (1, 1, 1) is called white.
The line joining black to white represents a gray scale
and has equal components of R, G, B.
2](https://image.slidesharecdn.com/rgbcolourmodel-170822175641/85/Rgb-colour-model-2-320.jpg)
Rgb colour model
- 2. RGB Model/Additive color model In this model, the primary colors are red, green, and blue. It is an additive model, in which colors are produced by adding components, with white having all colors present and black being the absence of any color. This is the model used for active displays such as television and computer screens. The RGB model is usually represented by a unit cube with one corner located at the origin of a three- dimensional color coordinate system, the axes being labeled R, G, B, and having a range of values [0, 1]. The origin (0, 0, 0) is considered black and the diagonally opposite corner (1, 1, 1) is called white. The line joining black to white represents a gray scale and has equal components of R, G, B. 2
- 3. RGB Model Each color is represented in its primary color components Red, Green and Blue This model is based on Cartesian Coordinate System 3
- 4. RGB color system Additive color model. For computer display. Uses light to display color. Colors result from transmitted light. Red + Green + Blue = White. 4
- 5. RGB color system This model is called additive, and the colors are called primary colors. The primary colors can be added to produce the secondary colors of light- Magenta(Red + Blue), Cyan(Green + Blue), and Yellow(Red + Green). The combination of Red, Green and Blue at full intensities makes white. 5
- 6. RGB color system The combination of Red, Green and Blue in full intensity makes white. White light is created when all color of the EM spectrum (electromagnetic spectrum) converge in full intensity. 6
- 7. Importance of RGB color model The color model RGB is used in hardware applications like PC monitors, cameras and scanners. It is used for Web graphics, but it cannot be used for print production. It directly reflects the physical properties of True- color displays. 7
- 8. Importance of RGB color model It is used For sensory representation. Display of text images in electronic system, For example- computer, TV, camera. 8
- 9. Importance of cymk color model The CMY color model is used in color printers. It is created by the subtractive mode Used in most commercial color printing (Books, Magazines etc.). 9
- 10. Advantages of CMYK technique 1) Less color process / screen for print. 2) More productivity. 3) Cost minimizing. 4) Good hand feel because of using less color on ground. 5) CMYK color can be used for different item of print because of common color way. 10