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Raster Conversion from ArcGIS into IDRISI There are multiple ways to accomplish this task, one of the simplest being to use the ‘Raster to ASCII’ tool in ArcGIS to generate an ASCII file from the Arc grid image, and then import into IDRISI with the ARCRASTER importing tool specifying the ‘ArcInfo ASCII to Raster’ setting. Alternatively you can opt to export the Arc grid file as an ERDAS Imagine file (*.img) and then import that file into IDRISI. To do this use the export function in the ArcGIS environment, right click the grid file and select Data> Export Data. Here specify the format for the image to be exported as *.img. Select any other settings that are necessary for your file. Now in the folder you specified for the output location you should have a *.img file. Moving to the IDRISI environment, set that folder where the *.img file is stored as your resource folder and the folder you want to be storing your working data in as your working folder. Go to File> Import> Software Specific Files> ERDAS. Choose you *.img file and give it an output name. Press OK. Once the conversion is complete you will see your *.rst file in your working folder. Lastly If you still have problems importing raster formats, including tif, you should try using the GDAL interface in IDRISI. Tif in particular, comes in many different flavours and can be problematic. Also, before you use GDAL, make sure you get the latest drivers from the clark website - http://clarklabs.org/support/gdal.cfm Follow the directions in the Help on configuring GDAL within IDRISI. If you still problems with GDAL and IDRISI imports, consider saving the data in another format and ensure that the datatype of the imported data is supported by IDRISI.

it could be related to coordinate and projection, if your file empty