Jump to content

Erdas signature file help!!!


regonath

Recommended Posts

i know how to save a .sig at unsupervised classification(were the signatures are randomly taken)... what i needed is to save a .sig  at a supervised(were i chose the signatures for the land-uses )... Thanks anyway for your time i am going for the exams now :P...god if your there be with me...

Link to comment
Share on other sites

Although it seems to be too late now - I suggest the following solution:

At a supervised classification you derive the signatures from training-areas which you have digitized as AOI-polygons (area of interest) directly into the satellite-image.

With the signature-editor you can get a corresponding signature for each AOI you previously set. When all signatures are ready (e.g. 1 Sig. for pastureland, 1 for woodland, 1 for water...) you can save them into a .sig-file (File-menu of the signature-editor > save). This .sig-file can be used as input for a supervised classification.

Regards

Link to comment
Share on other sites

Thanks i had almost forgotten the signature editor !!! But i did it there because i finished the rest exercise in a few minutes so i had 1:30 hour for that (i did it in 10 minutes tho) my grade was 8.5/10 and my Teacher in remote sensing told me - if you want we can do your final graduation homework together -  :azn: cool day ..... (i took 8,5 because i did some ***at theory)

Thanks Again

Link to comment
Share on other sites

  • 2 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.

Disable-Adblock.png

 

If you enjoy our contents, support us by Disable ads Blocker or add GIS-area to your ads blocker whitelist