New Image Mask Dialog Box

Use this dialog box to control what happens to image data outside the mask boundary.

Enable Mask

Enables an existing mask for display. Enabling allows you to view the image clip as defined by the image mask.

Image(s) Outside The Image Mask

Do Not Affect

Specifies that the images outside the mask boundary are not modified.

Hide Image(s)

Hides the images that are outside the mask boundary.

Unload Images

Unloads from memory the images that are outside the mask boundary.

Show Image Frame(s)

Specifies the visibility of image frames. If you choose Hide Image(s) or Unload Image(s), then you can select this check box to show the hidden or unloaded frames.

Define Image Mask

Rectangle

Draws a rectangular mask.

Polygon

Draws a polygonal mask.

Note: Use the Options dialog box to specify the default mask properties.