Using the Auto Matte Command
 
 
 

The Auto Matte command generates a high-contrast matte from a clip. The controls are described as follows.

GainBoosts the matte. Any pixel with a luma value between the minimum and maximum values is multiplied by the Gain and the new value is assigned to the resulting pixel. Using a low value for the Gain produces a soft matte with more grey levels. Using a high value produces a matte with fewer grey levels. Gain is expressed as a percentage value. The default value of 100% has no effect on the image since luma values are multiplied by 1.

To use the Auto Matte command:

  1. Click Auto Matte in the Processing menu.

    The Auto Matte menu appears.

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    (a) Min field  (b) Max field  (c) Gain field  

  2. Set the values in the Minimum, Maximum, and Gain fields.
  3. Select the source clip.
  4. Select the destination reel.

    A matte clip appears on the destination reel.

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    Original image

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    Matte generated with Min = 82, Max = 157