Graph Builder ENVI export

Optical Toolbox
#1

Hello,

in Graph Builder ENVI export yields an 80-90 Mb large product (.img file) with 0s, while if I run the same process manually I have an appropriate file.

The process is

Read → BandMaths → Subset → Write

If I save the file as BEAM-DIMAP it has the proper data both in Graph Builder version and in manual mode. SO seemingly the ENVI export is not working. What do I miss?

Thanks in advance.
Viktor

#2

Isn’t the BEAM-DIMAP format fully compatible with ENVI?

It doesn’t answer your question but maybe you can simply skip the ENVI export.

#3

I need the *.img file for the TIMESAT.

#4

it is inside the .data folder of the BEAM-DIMAP product (as an ENVI file consisting of *.img and *.hdr)

#5

That’s right, and when I open the *.img file on itself it contains only 0s, but if I open the *.dim file it contains data.

#6

sorry, I didn’t get that in your first post.

#7

OK, the *.img file does contain data (at least the TIMESAT recognised it). It is just the SNAP shows nothing in that band.

Anyway, thanks for help.

#8

so that means your problem is solved?

SNAP needs the *.dim file, but any other GIS can directly open the *.img-rasters in the data folder.

#9

Yeah, I was (I am) the stupid :smiley: The artificial problem that I created was solved in the end!

Sorry!
And cheers!