When it comes to Ultra HD, we’ve heard endlessly about three different color gamuts: Rec.709, DCI-P3, and Rec.2020 (also called BT.2020). What’s a color gamut? Look at the pictures at the top of this blog. The colored horseshoe shapes are CIE 1931 charts (CIE=The International Commission on Illumination). While there are different versions of CIE charts, the ones shown here are the most commonly used.
The charts show the colors visible to the human eye, with each point representing a specific wavelength of visible light. But no current display technology can cover all of these colors. The triangles shown indicate the smallest and largest of the three color gamuts mentioned above.
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