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Valued Contributor
Posts: 581
Registered: ‎10-27-2015

Practical guide to bands combinations

Dear all,

a customer request: is there available in the documentation any pratical description of what is possible to view using the different band combinations available for a specific sensor?

Thank you

 

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Technical Evangelist
Posts: 605
Registered: ‎02-02-2016

Re: Practical guide to bands combinations

You can find tables listing the bands and wavelengths for specific sensors in the Producer Field Guide, but it does not provide examples of what can be viewed with different band combinations for every sensor. There are a lot of other resources available which provide this information, for example: http://web.pdx.edu/~emch/ip1/bandcombinations.html

 

Kind regards,

 

Stephen Bent

Hexagon Geospatial Support

Valued Contributor
Posts: 581
Registered: ‎10-27-2015

Re: Practical guide to bands combinations

Thank you very much Stephen!

New Contributor
Posts: 3
Registered: ‎06-06-2016

Re: Practical guide to bands combinations

Stephen, Guiseppe,

 

I am looking for the files where I can define a default band combination for a specific sensor.

So I need

a) define the sensorname

b) define and name the band combinations

 

I know that these are textfiles, but I can't rember where to find them.

 

Thank you

Eva

Technical Evangelist
Posts: 839
Registered: ‎10-01-2015

Re: Practical guide to bands combinations

IMAGINE_HOME\etc\*.saf

Ian Anderson
Chief Product Owner, Desktop Remote Sensing
Hexagon Geospatial
New Contributor
Posts: 3
Registered: ‎06-06-2016

Re: Practical guide to bands combinations

Ian,

 

thank you, This is what I meant.

I was successful doing it for a couple of bands, but fail to do it for a Hyperspectral sensor with 271 bands.

 

When I access my bandcombinations IMAGINE closes.

I guess there is something wrong in the file.

 

Since I haven't got the wavelength information, I have used dummy values.

The questions are:

 

  • is the correct wavelength crucial to be defined in the file?
  • is there a possible limitation of bandnumbers to specify here?

Thank you

Eva

Technical Evangelist
Posts: 839
Registered: ‎10-01-2015

Re: Practical guide to bands combinations

Make sure the band count and band combination count are correct. Basially, make sure everything is correct :-)

 

 

  • is the correct wavelength crucial to be defined in the file?

Only if you're needing to use the wavelegnths, e.g. in spectral proessing. There may be a limitation that they have to be in ascnding order (can't remember for sure).

 

  • is there a possible limitation of bandnumbers to specify here?

No. It just needs to be correct.

 

Cheers

 

Ian Anderson
Chief Product Owner, Desktop Remote Sensing
Hexagon Geospatial