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Re: shifting individual pixels within an image [message #70733]

Mon, 03 May 2010 06:44

Gray
Messages: 253
Registered: February 2010

Senior Member

On May 3, 3:56 am, barbis <tonimuusim...@gmail.com> wrote:
> Hello all,
>
> pleaseplease help me!
> Quite new on idl and just wondering is there a simple way to move
> individual pixels within an image?
>
> For example a function
>
> output = indishift(input, tx,ty)
>
> where input,tx and ty are same size arrays and e.g if in pixel
> location (30,30) tx has a value 5 and ty has a value 0, then output
> has the same value on (30,30) as the input image PLUS the pixel value
> from input image (35,30).
>
> So tx contains the shifts in x direction and ty in y direction.
>
> Thanks alot for any help!!!

Couldn't you just do something like:

s = size(input,/dimensions)
indx = rebin(indgen(s[0]),s[0],s[1],/sample)
indy = rebin(indgen(1,s[1]),s[0],s[1],/sample)
input2 = input + input[indx+tx,indy+ty]

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[Message index]

		Re: shifting individual pixels within an image By: Gray on Mon, 03 May 2010 06:44
		Re: shifting individual pixels within an image By: penteado on Mon, 03 May 2010 06:41
		Re: shifting individual pixels within an image By: David Fanning on Mon, 03 May 2010 06:19
		Re: shifting individual pixels within an image By: barbis on Mon, 03 May 2010 05:51
		Re: shifting individual pixels within an image By: mankoff on Mon, 03 May 2010 05:07

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