Now that you understand the differences between RGB and YUV, how can you work with both systems? You'll encounter media that uses both, and the software you use supports both, but the differences between them demand different approaches. Understanding how to deal with both color systems can help you easily solve some visual challenges you may have faced many times in the past.
- [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 all they're doing.…
As long as we all agree the number means that much red,…
Get ready to remove the mystery behind terms you've encountered. If you work in a creative profession, this can enhance your command of the tools you use. Learn what a pixel really is, what color channels are, and what audio frequency is. Discover how color channels, bit depth, and video frame rates work. Find out the difference between codecs and file formats, and how compression is involved. By the end of this course, you'll know how to answer common client questions—like, whether a logo should be supplied in vector or bitmap form, and more.
Note: Motion graphics in this course were provided by Chelsea Parrish: chelseaparrish.com.
- What is a pixel?
- Aspect ratios
- Bit depth
- Alpha and transparency
- Light and color channels
- Color modes: RGB, YUV, CMYK
- Camera depth of field
- Chroma Key and Luma Key
- Blend modes
- Color wheels, vectorscopes, and waveforms
- Video compression and codecs
- Frame rates and timecode
- File formats
- Audio amplitude
- Capturing audio tone as frequency
- Audio timing using the phase
Skill Level Beginner
Learning Video Production and Editingwith Rob Garrott19m 25s Beginner
Video Foundations: Cameras and Shootingwith Anthony Q. Artis2h 58m Appropriate for all
Introduction to Video Dialogue Editingwith Ashley Kennedy3h 14m Appropriate for all
1. How Do Computers Think?
2. How Cameras and Computers Think about Color
3. The Language of Color
4. The Shape of Your Picture and the Speed of Your Video
5. Storing Everything (Codecs)
6. Color Wheels, Vectorscopes, and Waveforms
Understanding waveforms2m 39s
7. Making Changes
8. Audio Made Simple
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