How to Convert Erdas Imagine IMG Files to Shapefiles
In Erdas Imagine, IMG is the default file format and is used to store raster data. Erdas Imagine is a powerful and flexible geographic information system (GIS) tool. The shapefile format was introduced by ESRI and is a geospatial vector data format for geographic information systems software. Although Erdas is unable to convert IMG files to shapefiles, ArcGIS can read IMG files by default and create shapefiles from them.
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Instructions
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Open the ESRI ArcGIS ArcCatalog tool by clicking the ArcCatalog icon in the "Start" menu. Click the "ArcMap" button in ArcCatalog to start ArcMap.
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Click File in ArcMap and select Open. Select All Files in the Files of Type drop-down box and use the built-in file browser to select the Erdas Imagine IMG file. Click the "Open" button again to open the raster file in ArcMap. It will be placed in its own layer, in the Layers box on the right side of the screen.
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Edit the image if necessary. Right-click the layer containing the IMG file, go to Data and select the Export Data option. You should use this method to export the entire layer containing the raster image.
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Select the Selected Features and Use the Same Coordinate System as This Layer's Data Source options from the Export drop-down menu.
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Click the "Browse" button and use the resulting file browser to select the folder in which you want to save the shapefile.
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Type a name for your shapefile in the Name text box.
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Click the Save as Type drop-down box and select the Shapefile (.shp) option. Click the "Save" button to create the shapefile. Click "OK" when you see the confirmation message.
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