Help with Fluke .IS2 File Deciphering tags or calibration data

[ramphastos]

Hi all,

I was wondering if you want to try to add another thermal file type to exiftool...This from a FLUKE camera (TiX500?).  Sent to me by a colleague, so I don't know much else.  It looks like a compressed file, since you can rename to .zip and unzip and it has ir.data in raw.  But I don't know how to decipher the calibration data and thought this group might be up for the challenge?

There are CalibrationData.gpbenc and IRImageInfo.gpbenc files inside the zipped file.

Cheers
Glenn

[Phil Harvey]

Hi Glenn,

I don't see any metadata I can decode from this file, but there are 3 JPG images that may be extracted.  You can rename the file to ".zip" then open it as a zip file to see these images.

I don't recognize the gpbenc file format, and would need a lot more samples from different camera models to be able to reverse-engineer this.

- Phil

[ramphastos]

Thanks for the response. 

Alas, I only have the one sample.  Lots of different files, but only from one camera.  I'm pouring over the IRimageinfo.gpbenc file and might have found emissivity but sleuthing hex data is dizzying work.  I can't make sense of the CalibrationData.gpbenc file at all. 

Indeed I found all the images by unzipping, and can even load the IRdata no problem.  It's possible the data within are simply a straight forward colour to temperature scale (values are little endian stored ranging from ~4000 to >5000).

Cheers

[sebastianbarria]

Hi Phil.
I'm having the same problem here.
Have any of you found a way to convert the file to temperatures?
As far as I know, it is possible to export a CSV file using the Fluke SmartView software, but you have to do it manually.

I need to implement a php (ideally) solution to decode the .is2 files.

If anyone is able to do this work, I could even pay for it if needed.
Thanks!