Use the Global Composite settings to specify how all masks, combined together using their individual modes, affect the alpha channel for the selected input source image.
| Select: | To: |
|---|---|
| Comp | Choose which compositing mode will be used —see Global Composite Operators. |
| Correlation | Specify how input mattes are correlated. This can be used to improve the quality of the composite in special cases. For example, if you composite two mattes that share a good portion of their outline, you should indicate if they are Adjacent or Superposed. By default, the correlation mode is None, assuming that normally, the input mattes are not correlated. |
| Crop | Change the size of an image—see Crop Tool. |
| User Settings | Store initial mask parameters that can be reused during the rotoscoping process—see User Settings. |
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