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Re: ENVI's codes [message #68842 is a reply to message #68726]

Wed, 25 November 2009 04:02

Hassan
Messages: 48
Registered: October 2009

Member

On Nov 23, 12:27 am, "Jeff N." <jeffnettles4...@gmail.com> wrote:
> On Nov 22, 4:35 pm, Hassan <hkhav...@gmail.com> wrote:
>
>> I used the following code to display the image:
>> image=read_tiff(file)
>> imagesize=[62,488,290]
>> DEVICE, DECOMPOSED = 0
>> LOADCT, 38
>> WINDOW, 0, XSIZE = imageSize[1], YSIZE = imageSize[2]
>> TV, Image(0,*,*), 0
>
>> but there are two problems: first it's displayed upside-down and
>> second the way it shows the image is quite different with other
>> softwares like ENVI, it's more like the image is shown in 256-color
>> table or something like that.
>
> The upside-down part I can help you with at least. With ENVI the
> pixel origin is in the upper left corner of the image. With IDL the
> origin is the lower left corner. So add a reverse and you should be
> ok:
>
> image = reverse(image,2)
>
> put that aright after you call read_tiff.
>
> As for how its displaying, i'm not sure i understand your description
> of the problem, so i'll leave that to smarter folks than me :)

i used reverse but it didnt work the upside-down problem.

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[Message index]

		ENVI's codes By: Hassan on Sat, 21 November 2009 14:45
		Re: ENVI's codes By: jeanh on Wed, 25 November 2009 05:24
		Re: ENVI's codes By: Hassan on Tue, 08 December 2009 02:47
		Re: ENVI's codes By: Hassan on Wed, 25 November 2009 04:04
		Re: ENVI's codes By: Hassan on Wed, 25 November 2009 04:02
		Re: ENVI's codes By: Hassan on Wed, 25 November 2009 03:40
		Re: ENVI's codes By: jeanh on Mon, 23 November 2009 07:29

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