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Re: .dat file size [message #39757 is a reply to message #39740]

Wed, 09 June 2004 06:04

btt
Messages: 345
Registered: December 2000

Senior Member

Aleks wrote:

>
> this is the part of the code i don't quiet understand
>
> volume = BytArr(80,100,50)
> FOR j=0,49 DO BEGIN
>
> I know the 50 comes from the fact that there are 50 different images
> so we are going to stack them(I have 81 in my own test project). Now
> the 80 and a 100 comes from some other place and I know that is the
> size of the array ie its a 80x100 array. I have a test_01.tif file how
> would I figure out the size of the array?

Hello,

I think you are asking how to determine the size of the image in the
tiff file(s). You can use the QUERY_**** routines to get basic
information regarding the image before you read it into an IDL variable.

Something like this should work if your slices are stored in separate
files (you can easily modify this for multi-tiff format.)

nImages = n_elements(file)

ok = QUERY_TIFF(file[0], info)

If ok Then Begin

volume = BytArr([info.dimensions, nImages], /noZero)

for i = 0, nimages-1 Do $
Volume[*,*,i] = READ_IMAGE(file[i])

EndIf

Ben

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[Message index]

		Re: .dat file size By: siliconcube on Wed, 09 June 2004 11:57
		Re: .dat file size By: btt on Wed, 09 June 2004 06:04
		Re: .dat file size By: David Fanning on Wed, 09 June 2004 05:52
		Re: .dat file size By: mwvogel on Wed, 09 June 2004 02:14

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