Jump to content
Sign in to follow this  
regonath

Erdas signature file help!!!

Recommended Posts

Hello, please help me at this one!!!

How i export some signatures  that i made in a supervised classification (make them a .sig file) to use it at an other image?(erdas)  :undecided:

Thanks

  • Like 1

Share this post


Link to post
Share on other sites

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...

Share this post


Link to post
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

Share this post


Link to post
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

Share this post


Link to post
Share on other sites

Hi all,

it is too late now but it may be helpful to others

- save the signature file

- change the image association from the signature editor, edit menu

- the .sig file is now associated with the image to be classified

Share this post


Link to post
Share on other sites

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.

Sign in to follow this  

×
×
  • Create New...

Important Information

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