envierdas-imaginefiles
I have ENVI 5.0 , ERDAS 2013 SP2, and ArcGIS 10.1 SP1. Every time I save an Imagine file from ENVI 5.0 and open in ERDAS 2013 and it seems like ERDAS does not like it and it would not open and would close the program.
Does anyone out here have the same experience ? or am I the odd man out here ?
with ArcGIS, you can use the "copy raster" tools to convert the img file in a ENVI file. Just write ".dat" at the end of the name of the output file. With ENVI you just need to convert to an ENVI file and use the file that has no extension.
By the way, you don't need to write code to use gdal. You can install it with OSGEO4W, then you type
gdal_translate -of ENVI -co INTERLEAVE=BSQ myimage.img myoutputimage.dat
and it runs the conversion.
Use the Layer Stack tool in reverse by using your 11 band stack as the input and selecting only the bands you want in the output. For example, in the attached screenshot I added bands 1, 2, 3 to the stack (omitting band 4).
Best Answer
ENVI has never been very good with formats other than the native bil and tif. I have seen the behavior you mention, but it is inconstant and dependent on how the file was saved into an img format. It would be good to know how you are saving the file. I find it very unstable to just give output an img file extension. Your best bet is use the "Save File as ERDAS IMAGINE" export utility under raster management. I have never had a file go corrupt this way.
Your best bet is to just save a bil out of ENVI and import into ERDAS. You can also use the bil file(s) natively in ERDAS and save results as an img format. The ERDAS import/export filters are excellent and minimize issues with software back and forth.
ArcGIS is not quit as stable in this regard but, can read and operate on bil files, even saving img files. However, I often have files go corrupt, outside of ArcGIS. Even though you can supposedly control output characteristics of a file (bit depth, compression type) I find that ArcGIS often does not honor these specifications. As such, this is not a good software for handling format conversions.