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Re: convert image DN to unique values [message #72355 is a reply to message #72354]

Fri, 27 August 2010 07:34

Snow53
Messages: 32
Registered: July 2010

Member

On Aug 27, 8:26 am, Paulo Penteado <pp.pente...@gmail.com> wrote:
> On Aug 27, 11:23 am, Snow53 <jennifer_wa...@hotmail.com> wrote:
>
>> Hi,
>
>> I have an image where all the DNs are 0. I need to change the pixel
>> values to numbers that increase by 1 according to pixel location in
>> the array. For example: 1,2,3,4,5,6,7..... 700. It seems like it
>> should be easy to do... Any suggestions?
>
>> Thanks!
>
> It seems you want
>
> image=lonarr(nx,ny)
>
> where nx,ny are the dimensions.

Thanks, but I can get the array with no problem. What I'd like to
figure out is how to change those values of 0 within the array, so
that they increase by 1 for each position in the array.

... a better example. If I have an array(2,2) where the values are
00 , and I want 01 , what is the best way to do so?

00 2 3

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[Message index]

		Re: convert image DN to unique values By: Snow53 on Fri, 27 August 2010 07:47
		Re: convert image DN to unique values By: penteado on Fri, 27 August 2010 07:42
		Re: convert image DN to unique values By: Spon on Fri, 27 August 2010 07:38
		Re: convert image DN to unique values By: Snow53 on Fri, 27 August 2010 07:34
		Re: convert image DN to unique values By: penteado on Fri, 27 August 2010 07:26

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