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Create Hill Shade Images

Create Hillshade Images

Use Create Hill Shade Image to create a color shaded relief image from a digital elevation model using a color table or a displayed color image.

Consider using the Topographic Shading Tool, which also creates hillshade images with additional functionality.

  1. From the Toolbox, select Terrain > Create Hill Shade Image. The Select Hill shade Input DEM File dialog appears.
  2. Select the DEM file, and click Open. The Hill Shade Image Parameters dialog appears.
  3. Specify the Sun Elevation Angle and Sun Azimuth Angle in the corresponding fields. The Metadata Viewer may list the sun azimuth and sun elevation for the image, depending on the sensor.
  4. Select the name of a color table from the list.
  5. From the Stretch drop-down list, select a stretch type.
    • If you select % Linear, enter the percentage to clip.
    • If you select Linear Range, enter the minimum and maximum values.
    • If you select Gaussian, enter the number of standard deviations for the data distribution.
  6. Select output to File or Memory.
  7. Click OK. ENVI adds the resulting output to the Layer Manager.

See Also

Topographic Modeling, Topographic Shading, 3D SurfaceView

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