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Table Of Contents
The Color Correction Tool
608
(Media Composer | Symphony Option) How Color Correction Handles Color
Space and Bit Depth
When Media Composer makes some color correction adjustments, it converts the YCbCr color
information in the media stored on disk into RGB color information (a better format for many color
corrections) and then converts the information back to the original format for playback and storage.
This round-trip conversion takes the color information from an 8-bit or 10-bit YCbCr color space
into a 12-bit RGB color space and then back to 8-bit or 10-bit YCbCr. The 12-bit RGB color space
that Media Composer uses is designed to preserve color information as fully as possible during this
process. Clipping of the original color values is virtually eliminated, and round-off errors from the
two conversions are minimized.
The options for measuring units available in the Correction Mode Settings dialog box are a
convenience that lets you make adjustments using the units that are most useful or familiar to you.
When Media Composer makes the color correction adjustments, it always uses the 12-bit RGB color
space and always works with the same degree of accuracy.
Adding Comments to Color Correction Effects
You can add comments to color-corrected segments to assist you in your work. For example, you
might want to briefly note the type of adjustment for a segment or to make notes during a preliminary
correction pass of ideas for adjustments to perform later during a final pass.
The Comments button indicates whether a comment is present on a segment.
If the position indicator is on a segment that has a comment, the icon on the Comments button is
yellow.
If the position indicator is on a segment that has no comment, the icon on the Comments button is not
yellow.
To add a comment to a segment:
1. In Color Correction mode, move the position indicator to the segment to which you want to add
a comment.
For information on entering Color Correction mode, see “Entering and Exiting Color Correction
Mode” on page 588.
2. In the Color Correction tool, click the Comments button.
The Comments dialog box opens.
AutoCorrect Defines the automatic color corrections Media Composer makes when
you apply the Color Correction effect from the Effect Palette. For more
information, see “AutoCorrect Options” on page 701.
Tab Option Description