Setting up a bitmap mask

  1. In the Class Editing window, click Mask and then click Create Mask from new Bitmap.
  2. Ensure the Mask visible check box is enabled.
  3. In the Visible Image area, enable the Classified option.
  4. In the Maps tree, click the bitmap layer.
  5. On the Zoom toolbar, click the Zoom to 1:1 Image Resolution button.

Note: Images must be displayed at 1:1 or higher to draw a bitmap mask over the view pane. The drawing tools are not available when images are zoomed to overview size.

Parent topic: Post-classification editing
Previous topic: Initialize post-classification editing
Next topic: Opening a bitmap mask

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