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Re: Image reading [message #82362 is a reply to message #82361]

Mon, 10 December 2012 02:41

Helder Marchetto
Messages: 520
Registered: November 2011

Senior Member

On Monday, December 10, 2012 11:31:10 AM UTC+1, Dry in water wrote:
> Hello all,
>
> I'n really hard time to reading tif images. I have extracted tif image using ENDVI software. Then I import this really huge tif image (4526,12879,7) into IDL using 2 different ways; The one I used is importwizard to import this image into IDL as a variable. In this case, the following info are displayed on locals window. The type of image is STRUCT, value is ANONYMOUS. what does this info tell me? Does it mean this image didn't read?
>
> The another one is to use read_tif command. In this case, I get "variable is undefined: READ_TIF. Execution halted at: $MAIN$". Then I checked the file exist in a folder by file_test command like this,ok=file_test('D:\tmp\temp_opp\tmp_exam.tif'). It gave me 1. It exist in a folder. So what is the problem variable is undefined.
>
> Thank you very much

There are two things you should try:
1) use Read_tiff instead of Read_tif (two "f"s)

2)Try the Query command:
Result = QUERY_TIFF ( Filename [, Info] [, GEOTIFF=variable] [, IMAGE_INDEX=index] )
Check then the content of the Info variable. O would guess that if you don't get a positive result from Query_tiff, you will not be able to use Read_tiff

Regards,
Helder

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[Message index]

		Re: Image reading By: Norbert Hahn on Mon, 10 December 2012 08:43
		Re: Image reading By: David Fanning on Mon, 10 December 2012 08:08
		Re: Image reading By: Dry in water on Mon, 10 December 2012 08:07
		Re: Image reading By: Dry in water on Mon, 10 December 2012 07:57
		Re: Image reading By: David Fanning on Mon, 10 December 2012 06:51
		Re: Image reading By: David Fanning on Mon, 10 December 2012 06:34
		Re: Image reading By: Helder Marchetto on Mon, 10 December 2012 06:22
		Re: Image reading By: Dry in water on Mon, 10 December 2012 05:24
		Re: Image reading By: Helder Marchetto on Mon, 10 December 2012 04:37
		Re: Image reading By: Dry in water on Mon, 10 December 2012 04:25
		Re: Image reading By: Dry in water on Mon, 10 December 2012 04:24
		Re: Image reading By: Helder Marchetto on Mon, 10 December 2012 02:41
		Re: Image reading By: karo03de on Tue, 18 December 2012 12:47
		Re: Image reading By: Jim Pendleton on Mon, 17 December 2012 08:23

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