In the context of video, a frame is simply a whole image. When enough frames are played in quick succession, your visual system is persuaded it's seeing movement. A field is subtly different, and if you're working on video for broadcast TV, you'll need to know the difference between interlaced and progressive video to be certain you're delivering the right content. This video takes a deep dive into these concepts.
- [Instructor] If you're working in video,…you're probably already pretty comfortable…with the idea of a frame.…It's a single, complete image,…one of many displayed in a continuous series…that creates the illusion of movement.…A single frame of video is literally an image,…little different to any photo or graphic you might have.…But there's one difference, I suppose,…which is that the compression systems…used to store video information…often include a temporal factor, a time factor.…They can compare two frames or more…and only store the differences, for example.…
Still, regardless of the way a frame is stored,…it's still just an image ultimately like any other.…Except in one particular instance.…If your video frame is recorded, stored,…and played back as a whole, single frame,…it's referred to usually as progressive.…There's another way to record frames of video,…which allows for the appearance…of smoother movement, called interlacing.…The principle is quite simple.…Let's imagine you're recording NTSC video…at 30 frames per second.…
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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