2017

Table Of Contents
4 Drag in the Degrain fields to modify the grain size and restore edge sharpness.
(a) Size field (b) Edges field
To:Drag:
Estimate the size of the grain in the image.Size
De-sharpen the edge of the image. By default, Degrain sharpens the edges. Use the Edges
field to restore the natural look of the edges in the image.
Edges
5 If you are not satisfied with the result, you can start over with a new sample, and then adjust the
Degrain fields. To resample an area of the image, Command+Option-drag the image.
The sample is outlined in green, indicating that you are resampling the image.
NOTE You can also reset Degrain parameters. To reset Degrain parameters, click the Reset button, next to
the sampling box.
6 If resampling the image and adjusting the Degrain fields does not sufficiently remove grain, enable
More to increase the overall effect of Degrain.
NOTE The More button is either enabled or disabled for the entire clipyou cannot turn it on and off for
different frames in the clip. When you enable More, processing speed slows down.
After you have removed grain from your clips, you may still have to
remove unwanted greys (page 694).
Removing Unwanted Greys
If you have unwanted grey areas in the matte, you can use up to three patches in the Master Keyer to isolate
a range of colours to be included in, or excluded from, the key.
NOTE Patch parameters are animatable. Patch samples are also animatable and appear in the Channel Editor as
a Matrix channel, located in the Patch folder.
694 | Chapter 16 Chroma Keying and Working with Green Screens