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read pixel [message #35191]

Fri, 16 May 2003 08:18

graftons
Messages: 5
Registered: April 2003

Junior Member

Hi
I must to get information about some pixel and store these in array.
To do this with idl I simply write:
for i=1, 10 do begin
TV, img
cursor, x,y
print, x,y, img(x,y)
array = [[array],[x,y,img(x,y)]]
endfor

But I must use very large image so I would read pixel location using
standard ENVI display (scroll, image and zoom windows). I don't know what is
the right procedure, I am very inexperienced.
Do you know if this is possible? How could I do? Or do you know some web
guide?
Thanks in advance
Roberto Spedale
Politecnico di Torino

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