LiveView Exercise: Editing a Band Assignment Color Map

In this exercise, you see how different band assignment color maps assist the visual analysis of a multispectral data set.

Note: The Getting Started Guide sample files can be downloaded from https://www.autodesk.com/raster_design_getting_started_guide. Download and extract the sample files onto your workstation to use them in this exercise.
To edit a band assignment color map
1

Open the LiveView_ColorMap2.dwg sample file.

A satellite image is displayed that shows some urban terrain in normal colors.

2

If the Image Manager toolspace is not open, click Raster menuManage.

In Image Manager, select the Image Insertions view.
3

In the Image Insertions view, right-click the image name and click Edit Color Map.

4

In the Band Assignment Color Map dialog box, note that the red, green, and blue channels on the left are assigned to the corresponding red, green, and blue data bands.

5

In the Band Assignment Color Map dialog box, use the three drop-down lists to assign the color channels as follows:

  • Red channel to the Near Infrared (NIR) band
  • Green channel to the Red band
  • Blue channel to the Green band

Click Apply to see the change immediately, and click OK to close the dialog box.

6 This color map shows vegetation as red. Vegetation that is healthy or more dense appears darker red. This type of display is known as a false color image, and this particular band assignment is commonly used for analyzing vegetation.