About Color Gamut, Color Mode, Color Difference

August 19, 2022

Color, A Thing That We Come Into Contact With Every Day, Has A Lot Of Details But We Don't Usually Know About It. Knowing The Terms And Definitions Can Help You Choose The Right Screen Or Projector, And Calibrate The Colors To Present The Best Picture.

Color, a thing that we come into contact with every day, has a lot of details but we don't usually know about it. Knowing the terms and definitions can help you choose the right screen or projector, and calibrate the colors to present the best picture.

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Color Model

color light

Based on the mixing of shades to produce various different colors of light, the higher the value, the lighter the color.

The three primary colors of light are: red, green, blue

It is very common in electronic screens and projection devices. In fact, if you observe through a microscope, each pixel is actually composed of three color luminous points.

Color Space Standard

The color gamut space is defined according to the human eye, but on a projector or screen, so many colors cannot be fully displayed.

So there is a color gamut standard to define the degree of color reproduction. The wider the color gamut, the more colors it can reproduce. There are many color gamut standards, each covering colors of different sizes and positions.


Color Difference

Also known as color distance, it is a concern in color science. It quantifies a comparative concept of color difference. Before this standard, people could only describe the difference in a descriptive way, and it was very imprecise for workers who strictly require color such as design.

Delta E, also commonly represented by the Greek letter ΔE. Color difference standard defined by the International Commission on Illumination.

The ΔE value is used to ensure that the colors displayed on the screen are as close as possible to what the human eye sees. It is also the distance between two color positioning points in the color gamut. When the Delta E value of the screen is higher, it means that it is farther away from the real color; otherwise, the lower the ΔE value, the more accurate the color.

Some monitors and projectors will additionally indicate ΔE < 1 to emphasize its color calibration accuracy.

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