| help with imdisp [message #80635] |
Wed, 27 June 2012 13:29 |
Kyle Schindler
Messages: 3
Registered: June 2012
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Junior Member |
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Hi,
I am new to IDL I only have a few weeks experiance.
I have an array ch1,ch2,ch3, and ch4 each are from a FITS file which is ch1 FLOAT = Array[1763, 1957]
I am trying to cancel out the background noise then use impdisp to display ch1/ch2, ch3/ch4 ect..
I first use where to subtract out the noise
ch10 = where(ch1 gt .01)
values = ch1[ch10]; now this gives me a new array
;VALUES FLOAT = Array[701724]
;For imdisp to work I need need to have a two dimension array.
;so I use
makech12d = array_indices(ch1,values)
;MAKECH12D LONG = Array[2, 701724]
;This prints out basically all zeros and a few ones the 2nd column is all zeros
; first column is all whole #'s even if its float
;I did this with ch3 and used this code
b = makech32d/makech12d
impdisp,b(x1-nx:x1+nx,y1-ny:y1+ny),range=[-2.0,2],channel=1, margin=0.02
% Illegal subscript range: B.
how can I get the array values to be an array that is closer to [1763, 1957] rather than [2, 701724] and fix my error
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