create nd vi

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Technical Support Procedures Create an NDVI Image Objective: To create an image showing vegetative productivity. 1. From the ERDAS IMAGINE main icon panel, select Interpreter | Spectral Enhancement | Indices. 2. In the Indices dialog, specify the input file to be lanier.img from the examples directory. Specify an output file name, and select the Stretch to Unsigned 8-bit option. The Select Function: should be NDVI. Select OK. Leica Geosystems GIS & Mapping gis.leica-geosystems.com Technical Support [email protected] Page 1 of 1 TM Last Updated: 3/29/2004 CreateNDVI

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Page 1: Create Nd Vi

Technical Support Procedures Create an NDVI Image Objective: To create an image showing vegetative productivity.

1. From the ERDAS IMAGINE main icon panel, select Interpreter | Spectral Enhancement | Indices.

2. In the Indices dialog, specify the input file to be lanier.img from the examples directory. Specify an output file name, and select the Stretch to Unsigned 8-bit option. The Select Function: should be NDVI. Select OK.

Leica Geosystems GIS & Mapping

gis.leica-geosystems.com Technical Support

[email protected]

Page 1 of 1

TM

Last Updated: 3/29/2004 CreateNDVI

Page 2: Create Nd Vi

3. When the process is complete, close the progress meter by selecting OK.

4. Open the results of the NDVI function in a Viewer and lanier.img in another Viewer.

Leica Geosystems GIS & Mapping gis.leica-geosystems.com

Technical Support [email protected]

Page 2 of 2

TM

Last Updated: 3/29/2004 CreateNDVI

Page 3: Create Nd Vi

Leica Geosystems GIS & Mapping gis.leica-geosystems.com

Technical Support [email protected]

Page 3 of 3

TM

Last Updated: 3/29/2004 CreateNDVI

Page 4: Create Nd Vi

What does the NDVI image show you? Which pixels would be more productive, very dark pixels or very bright pixels?

Leica Geosystems GIS & Mapping gis.leica-geosystems.com

Technical Support [email protected]

Page 4 of 4

TM

Last Updated: 3/29/2004 CreateNDVI