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1

You need to select the "Show All" box in the Index Options GUI.


2

ATCOR for Erdas Imagine will convert DN to true reflectance--this step is critical for change detection analyses. Then you can use DeltaCue add-on in Erdas Imagine to detect land cover change. More details on the DeltaCue add-on can be found here. Additionally, there is a fairly good instructional video on how to use DeltaCue to get you started. I would ...


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Hillshade computes the local illumination from a light source located at infinity (like the sun). Basically, it yields the cosinus of the normal to the face of the terrain and the light ray. This can be used for : visualisation and cartography : the light source is then located near the north, which then gives a nice picture of the relief. analysis ...



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