2017

Table Of Contents
There are three types of patches in the Master Keyer, that are applied to different areas of the image.
Is applied to:Selected patch:
Areas of the image to be included in the black part of the matte.Black
Areas of the image to be included in the white part of the matte.White
Areas of the image that are along the edge of the key. Edge Analysis is useful when there
is a specific edge you want to erode but cannot do so with the Matte parameters. You
can then increase or decrease the softness of this patch using the Soft field.
Edge Analysis
To remove unwanted greys:
1 In the Master Keyer menu, select Patch1, Patch2, or Patch3 from the Sampling box.
2 Set the view to Matte view or Result view.
3 Sample the image where you want to apply the patch. To sample a single pixel, click the image. To
sample an area of the image, Command-drag a selection box.
When you Command-drag to sample, the sample is outlined in red. In the Master Keyer menu, the
Patch button is enabled and the appropriate patch appears in the Patch box and is applied to the image.
NOTE A Patch button is either enabled or disabled for the entire clipyou cannot turn it on and off for
different frames in the clip.
(a) Patch buttons (b) Patch controls (c) Patch boxes
4 To add more colour to the patch, resample the image.
5 To use the same patch but start with a new sample, Command+Option-drag the image.
The sample is outlined in green, indicating that you are resampling the current patch.
Creating and Refining a Key in the Master Keyer | 695