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Re: divise image envi-idl [message #70959 is a reply to message #70958]

Wed, 19 May 2010 07:17

Antoine Cheula
Messages: 1
Registered: May 2010

Junior Member

"Jeff N.

"You need to read the image data into memory if you want to subscript
it this way."

That was the problem. I still have a problem to save my divide images
with the function envi_write_envi_file...

Now, my program look like this :

pro tuilage

ENVI, /RESTORE_BASE_SAVE_FILES
ENVI_BATCH_INIT

image = 'C:\Documents and Settings\Administrateur\Mes documents
\cooccurrence+1+2'
envi_open_file, image, r_fid=fidimage, /NO_REALIZE

if (fidimage eq -1) then begin
print, 'error nestor'
endif

envi_file_query, fidimage, dims = dimimage, NB=NBimage, NL=NLimage,
NS=NSimage, Bnames=Bnamesimage, data_type = data_type
pos = lindgen(NBimage)

openr, lun, image, /get_lun
espace = fltarr(NSimage, NLimage, NBimage)

READU,lun, espace

result = fltarr(NSimage/5, NLimage/2, NBimage)

for i = 0, (NSimage-NSimage/5), NSimage/5 do begin
for j = 0, (NLimage-NLimage/2), NLimage/2 do begin

result = espace[i:i+((NSimage/5)-1),j:j+((NLimage/2)-1),
0:NBimage-1]

envi_write_envi_file, result, data_type=4, nb=NBimage,
nl=NLimage/2, $
ns=NSimage/5, BNAMES=BNamesimages, $
outname = STRCOMPRESS('C:\Documents and Settings\Administrateur
\Mes documents\'+string(i/(NSimage/5))+string(j/(NLimage/2)),/
REMOVE_ALL)

endfor
endfor

end

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[Message index]

		Re: divise image envi-idl By: tonino on Thu, 20 May 2010 14:03
		Re: divise image envi-idl By: tonino on Thu, 20 May 2010 13:22
		Re: divise image envi-idl By: jeanh on Wed, 19 May 2010 10:33
		Re: divise image envi-idl By: Antoine Cheula on Wed, 19 May 2010 07:17
		Re: divise image envi-idl By: jeffnettles4870 on Tue, 18 May 2010 12:22
		Re: divise image envi-idl By: jeanh on Tue, 18 May 2010 12:03
		Re: divise image envi-idl By: tonino on Tue, 18 May 2010 10:50
		Re: divise image envi-idl By: jeanh on Tue, 18 May 2010 09:15

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