regonath Posted January 25, 2011 Report Share Posted January 25, 2011 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 1 Quote Link to comment Share on other sites More sharing options...
Lurker Posted January 25, 2011 Report Share Posted January 25, 2011 what erdas version you are using right now ? Quote Link to comment Share on other sites More sharing options...
regonath Posted January 25, 2011 Author Report Share Posted January 25, 2011 erdas imagine 9.2 (i have exams tomorrow so if anyone can answer this fast i would be pleased !!) Quote Link to comment Share on other sites More sharing options...
Lurker Posted January 26, 2011 Report Share Posted January 26, 2011 you can set the sig file and it should save the sig file Quote Link to comment Share on other sites More sharing options...
regonath Posted January 26, 2011 Author Report Share Posted January 26, 2011 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 ...god if your there be with me... Quote Link to comment Share on other sites More sharing options...
MoTSCHIGGE Posted January 26, 2011 Report Share Posted January 26, 2011 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 Quote Link to comment Share on other sites More sharing options...
regonath Posted January 26, 2011 Author Report Share Posted January 26, 2011 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 Quote Link to comment Share on other sites More sharing options...
MoTSCHIGGE Posted January 26, 2011 Report Share Posted January 26, 2011 hehehe sounds great! congratulations! Quote Link to comment Share on other sites More sharing options...
bluehery Posted April 4, 2011 Report Share Posted April 4, 2011 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 Quote Link to comment Share on other sites More sharing options...
3dbu Posted April 4, 2011 Report Share Posted April 4, 2011 that's right man this's the process.... regards Quote Link to comment Share on other sites More sharing options...
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