Bitmap > Colour > Thin

Use this menu option to reduce the width of a primary colour area on the selected bitmap layer. ArtCAM achieves this either by replacing the edges of the primary colour with the secondary colour, or by immediately reducing the area to a single pixel skeleton.

To thin areas of bitmap artwork shown in the primary colour:

  1. In the Project Tree, select the bitmap layer on which you want to thin areas of colour.
  2. Use either of the following methods to display the Thin Primary Colour dialog:
    • Select Bitmaps > Colour > Thin.
    • Right-click in the immediate area surrounding the Colour Palette and select Thin from the context-menu.
  3. Select the thinning method you want to use:
    • Keep processing until finished — This option continues to thin all regions of the artwork on the selected bitmap layer in the primary colour until they are reduced to a width of one pixel.
    • Limit number of passes to — This option sets a limit on the number of thinning passes according to the value specified in the box. Each pass converts one edge pixel in the primary colour to the secondary colour.
  4. Click OK to close the Thin Primary Colour dialog and thin all regions of the artwork on the selected bitmap layer in the primary colour.

    The region of pixels removed from the bitmap layer is marked in the current secondary colour.

  5. Note: If you do not need to mark this region, ensure the secondary colour is the same as the background colour in the bitmap layer before colour thinning.

See also