Converting ENVI file to TIFF using ArcPy

Question

I have ENVI files one ASCII file .hdr and a flat_binary raster file which is a file without an extension I'd like to convert them to TIFF files These are the steps I followed:

1. Rename flat_binary raster file by adding ".dat"
2. Keep the pair of files in the same directory
3. Then, I wrote this code

import arcpy
ndvi_file="G:\\data\\test\\MYD13A2_A2006201_MED_1km.dat"
ndvi_tiff_file="G:\\data\\test\\data_tiff"
arcpy.RasterToOtherFormat_conversion(ndvi_file, ndvi_tiff_file, "TIFF")

But I didn't get the converted File I'm getting this error

Failed to convert: <built-in function input>. ERROR 999999: Error executing function.
Failed to execute (CopyRaster)

Is there anything missing?

• Aaron: Is ndvi_tiff_file a workspace path or file path? It should be a workspace path.
• hanen balti: yes it's the workspace

Answer 1

Can ArcMap read the .dat file (it reads ENVI format without conversion).

Have you tried specifying the .tif extension on the output? The Copy Raster tool requires the .tif extension on the output path.

Also "TIFF" is an incorrect parameter in that spot. try format="TIFF" (if you need it, honestly, I think the file extension should do the trick). (UPDATE sorry, I didn't see you were using this batch copy tool)

• hanen balti: Thank you, but for the format="TIFF" It is not possible I followed the documentation (desktop.arcgis.com/fr/arcmap/10.3/tools/conversion-toolbox/…) and Adding the extension doesn't work
• Curtis Price: I would try Copy Raster first before you try this tool to copy all of them. I'm guessing your ENVI files are not set up in a way that ArcMap can read them. If they were in the proper format, you could access them directly (not much reason to convert). ArcMap reads ENVI directly. desktop.arcgis.com/fr/arcmap/10.3/manage-data/raster-and-images/…
• hanen balti: The problem that when I do ADD data with ArcMap I cannot see my data, is there any other alternative ?
• Curtis Price: My guess is that the ENVI images are of a data type that ArcGIS does not support, like Double. If you scale the NDVI values to float or byte and use a file extension (.dat or .img) you can probably read the ENVI files.
• hanen balti: The problem that if I change the extension of the ENVI file and open it in ArcMap I get 3 bands images with 0..255 values so I think i lose the NDVI values