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2019.x

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Table Of Contents
(Media Composer | Symphony Option) The Levels Group
659
To set black, white, and gray points with the histogram text boxes, do one of the following:
t Type a numerical value in the appropriate text box, and then press Enter (Windows) or Return
(Macintosh).
Text boxes below a histogram control: Black Point (left), Gray Point (center), and White Point (rigtht)
For example, if you are working with 8-bit values and you type
50
in the In Black Point text
box, you set the black point to 50 on a scale from 0 to 255.
t Click in the appropriate text box, and then press the Up Arrow key to increase the value or the
Down Arrow key to decrease the value by small increments.
To set black, white, and gray points with the mouse scroll wheel:
1. Click the appropriate slider or click in the appropriate text box.
2. Do one of the following:
t Press the Ctrl key and use the scroll wheel to change the value in small increments.
t Press the Ctrl and Shift keys (or the Ctrl and Alt keys) and use the scroll wheel to change the
value in increments of -10 or +10.
To adjust a control point in the ChromaCurve graph:
t Click a control point, and drag it to a new position.
When you click a control point, a circle appears around it to indicate that it is selected.
Working with the Composite and Luma Tabs in the Levels Tab
The Composite tab shows histograms that represent the levels in the composite image before and
after correction. The Luma tab shows histograms that represent the luminance levels in the image
before and after correction. They are useful for checking whether your color-corrected images are
within the composite and luminance limits you need to meet and for adjusting levels to meet those
limits.
The Composite tab displays unit information in either IRE units or millivolts, depending on which
option you select in the Correction Mode Settings dialog box. The Luma tab displays unit
information in a broader range of unit types. For more information, see “Customizing Color
Correction Mode Settings” on page 605.
You can make only black point and white point adjustments in the Composite and Luma tabs. By
adjusting these two points, you can bring any values that exceed your composite or luminance limits
back into an acceptable range.
The following illustration shows the controls for the Composite histogram and Curve graph.