Levels adjustments are one of the simpler options in your color toolkit. While they don't offer the subtle nuance of Curves adjustments, they can often provide exactly the result you need, with a simple interface and few clicks of the mouse. Levels controls in video editing applications often allow you to adjust the output range, in addition to adjusting the original media levels. This can help you ensure your media meets broadcast standards. This video explains how.
- [Narrator] Whatever display you're working with,…there's going to be a maximum brightness for each pixel…and a minimum brightness, this minimum isn't just of,…it's the lowest brightness the pixel can have…while still showing detail, bellow that…it's like underexposed film that doesn't have any texture.…Above the maximum brightness, it's equivalent…to overexposed film, again with no texture.…When viewing your image in a waveform,…you'll see the maximum and minimum brightness…currently in your image and there are lots of ways…to make adjustments to this brightness range…and a Levels adjustment is one of the quickest and easiest.…
You can achieve similar results using a Curves Control,…but this is even quicker in my view.…Not all Levels controls give you access…to the Output Levels as well, but let's look at that first.…Here, I've got the minimum output and maximum output,…which in this eight bit control zero to 255,…just as we'd expect for a regular RGB image.…Take a look at the lesson on the difference…between eight bit, 10 bit, 12 bit and beyond,…
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 33s 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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