Is it HD or SD? UHD or 4K? When recording and delivering video files, determining which image resolution you should be working to can be bewildering. To complicate matters, theaters and TV broadcasters use different naming conventions and resolutions. This video explains the different resolutions and helps you decide which to use.
- [Instructor] Frame size is just the horizontal…and vertical resolution of your image.…Confusingly, quite a few approaches…are taken to naming them.…Now let's start with an obvious naming convention, HD.…It's 1,920 by 1,080 pixels.…Then there's 1,280 by 720 too, of course,…but full HD is 1,920 by 1,080.…This frame resolution is usually referred to…by the vertical resolution, as 1080p or 1080i,…depending on whether it's interlaced or progressive footage.…
The same rule applies for 1,280 by 720 footage,…which is called 720p usually because you'll find footage…at that resolution is usually progressive.…Now things get a little more complex.…Ultra High Definition is four times the resolution of 1080.…It's exactly double the resolution on each dimension,…making it 3,840 by 2,160.…This is usually abbreviated to UHD.…In fact, there's an even bigger resolution…that's 7,680 by 4,320 pixels too.…
And this is still categorized as Ultra High Definition.…It's just bigger, even more Ultra High Definition…than what I'm going to call UHD.…
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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