Activity: Exhibition. RGB color model. Topic: RGB (additive synthesis system based on red, green and blue)
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-Karina Chidiak karinachidiak14.blogspot.com
-Salome Garcia, Nicholas Robinson http://salomeyah.blogspot.com
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all possible colors that can be perceived in electronic systems (TV, monitors, digital cameras, video projectors, etc.) are created by mixing three colors, called Colors too light or additive primary colors, which are red, green and blue. This is what is known as the system or RGB color model (red, green, blue), where the possible colors derived from the intensity of each color, which combines this system to give out an array of different colors and with different quantitative traits. However, when no light color is present, there is nothing to perceive, therefore there is black.
Model What is RGB?
The RGB color model is itself an additive color model, in which red, green, and blue are added and mixed in various ways to reproduce a wide number of colors. The model name comes from the initials of the three (in English terminology) additive primary colors, red (red), green (green) and blue (blue). The principal purpose or function of the RGB color model is for the detection, representation, and display pictures in electronic or computer systems, such as televisions and computers, but has also been used in conventional photography. Typical devices RGB color model are TV sets of various technologies (CRT, LCD, plasma, etc..), And video cameras, image scanners, computers, mobile phones, video projectors and more.
what basis?
to indicate what proportion of each color mix, assigning a value to each of the primary colors so that the value 0 is not involved in the mix. The higher the value is understood that brings more intensity to the mix.
Similarly, each of the three mixed colors are represented numerically in terms of its intensity from 0% to 100%, the percentage is indicated by a number between 0 and N where 0 means 0% intensity and N means 100%. Therefore it is necessary to understand a nomenclature based on these values \u200b\u200b
Therefore the rate at which we mix each color on screen is determined by the value of each primary color, so the value 0 (zero) means that is not involved in the mix and, as that value increases, it is understood that brings more intensity to the mix. Thus, a color, it is represented in the system through a set decimal RGB (R, G, B) or a hexadecimal # RRGGBB group.
- syntax in the group or decimal , the intensity of each of the components is measured on a scale ranging from 0 to 255. Therefore, the red is obtained (R = 255, G = 0, B = 0), the green (R = 0, G = 255, B = 0) and blue (R = 0, G = 0, B = 255), obtaining in each case a result color monochromatic.
- in the group or hexadecimal syntax , the intensity of the components is measured on a scale of 3 pairs of values: 1 pair of values \u200b\u200bfor red, 1 pair for 1 pair for green and blue. The scale for each value ranging from 0 to 9 continuing with the letters A through F, so that 0 corresponds to the lowest and highest F value. Then be written more saturated red # FF0000 (ie R = FF, G = 00, B = 00), where the first pair of values \u200b\u200b(FF) provides the maximum red, and 2 pairs following (00) and (00), indicate the absence of green and blue. Therefore, the green color and write # 00FF00 Blue # 0000FF (When pure).
How It Works
This color space is represented in the Photoshop color picker.
RGB images use three colors to reproduce on screen up to 16.7 million colors. RGB is the default mode for images in Photoshop. Computer monitors always display colors with RGB. This means that working with different color modes such as CMYK, Photoshop temporarily converted to RGB data for display.
Because the RGB colors combine to create white, they are also called additive colors. Add all these colors together creates white, ie, all lengths of visible wavelengths are transmitted back to the eye. Additive colors are used for lighting, video and monitors. The monitor for example, creates color by emitting light through red phosphors, green and blue.
Various electronic systems such as scanners and monitors are based on this model, so it is a natural model for describing colors on a computer, especially when working with scanned images. The value of each "channel" (red, green or blue) can range from 0 (no color) to 255 (maximum color saturation). The RGB color is sometimes also called 24-bit color or millions of colors. It is essential that knowledge management for best practice in audiovisual systems today, whether at the time of doing any digital or electronic such as animation, video in general, digital photography among others.
Conclusion.
Ultimately, as RGB additive color model, is given as more red, green and blue is added, the more they look like the color white. When you mix the same amount of red, green and blue, always get a neutral gray. To darken a color, you must remove the same amount of the three colors. Different electronic systems such as scanners and monitors are based on this model, so it is a natural model for describing colors a team, especially when working with scanned images. The value of each "channel" (red, green or blue) can range from 0 (no color) to 255 (maximum color saturation). The RGB color is sometimes also called 24-bit color or millions of colors. It is essential that knowledge management for better practice of audiovisual systems today, whether at the time of doing any digital or electronic such as animation, video in general, digital photography among others.
rgb Model
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