From the course: Digital Media Foundations

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Comparing RGB and YUV

Comparing RGB and YUV

From the course: Digital Media Foundations

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Comparing RGB and YUV

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- [Instructor] There are great reasons to use one version or another of YUV, so why don't we use it for everything? Well, for one reason, when the specifications were devised for the various forms of YUV, it was given a smaller range of colors than RGB systems can reach. And in practice, if you compare one to the other, you lose something in the region of 10% of the available colors. That's colors your eyes could see if they were shown. There are different kinds of YUV for different video systems, and this is discussed in the lesson on legal levels. There's an argument, actually, to use RGB for everything, but we don't do that partly because of our history of using YUV for camera image acquisition and display. Regular TV screens display in YUV color. So computer screens use a form of RGB called sRGB, TVs use YUV, and digital system screens use another form of RGB altogether. These are all ways of describing the amounts of each color. So this much red is this number, for example, is…

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