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Re: Inverting the image [message #28525 is a reply to message #28474]

Wed, 19 December 2001 14:33

John-David T. Smith is currently offline

John-David T. Smith
Messages: 384
Registered: January 2000

Senior Member

Akhila wrote:
>
> HI,
> I have an image of size(512 x 512 x 195). Its a CT image of chest and
> the image appears with the backbone in the upward direction and the
> sternum in the downward direction. I want to get it inverted.
> For example:
>
> filename = Filepath(SubDirectory = ['examples', 'data'],
> 'worldelv.dat)
> image= BytArr(360, 360)
> openR, lun, filename
> ReadU, lun, image
> Free_lun, lun
>
> Tvscl, image

How about "1/image". Pretty inverted there.

But seriously, you don't really say what you mean by "inverted", which
is a concept which applies quantitatively only to colormaps, where it
means "reverse the order of the colormap entries". Maybe you want
something like:

image=max(image)-image

JD

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[Message index]

		Inverting the image By: idlfreak on Wed, 12 December 2001 11:23
		Re: Inverting the image By: David Fanning on Wed, 19 December 2001 14:53
		Re: Inverting the image By: John-David T. Smith on Wed, 19 December 2001 15:20
		Re: Inverting the image By: John-David T. Smith on Wed, 19 December 2001 14:33
		Re: Inverting the image By: James Kuyper Jr. on Wed, 19 December 2001 16:12
		Re: Inverting the image By: idlfreak on Thu, 27 December 2001 23:17
		Re: Inverting the image By: David Fanning on Fri, 28 December 2001 10:03

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