Human perception is far from precise, but it is fairly consistent. When making technical decisions about your media, it can be difficult to know what to keep and what to give up to ensure that your audience has the best experience. This video explores some of the key factors that influence the way your audience perceives your media, and highlights the single factor that matters most.
- [Narrator] Human perception of light and sound…is far from literal or precise.…A perfect example is our perception of neutral gray.…Imagine looking at a card on a sunny day,…that's solid black.…Let's call that amount of brightness, zero.…Then lets' take a white card and call it 100.…Of course, the cards might be a little lighter or darker…than perfect black or white,…but let's imagine they're both exactly black or white.…Now imagine a card that appears to be…perfectly between the two, in brightness.…
And we'll call this neutral gray.…It would be natural to presume the card would be 50% bright,…but in fact, because of the way we perceive brightness,…it would technically be 18% bright.…To our eyes, it looks half as bright as the white card,…but in reality, just 18%.…This peculiarly subjective way…of perceiving color and light,…creates challenges for camera manufacturers,…creative software developers, and the makers of screens.…And the journey light takes from the original subject,…to a display, is complex, all to compensate…
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 Garrott20m 37s 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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