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Re: digitize a curve from an image [message #21372 is a reply to message #21178]

Fri, 18 August 2000 00:00

Med Bennett
Messages: 109
Registered: April 1997

Senior Member

I know that there is at least one standalone program that is supposed to
do this, I think it's a Mac thing. Failing that, I guess I would
digitize it in device coordinates, and then use POLYWARP to try to
recover the data coordinates. I'll see if I can find the name of that
program. Good luck,

Med

Kristian Kjï¿½r wrote:
>
> I have a gif file (B/W only, no greys or colours) showing a line graph.
> Now I would like to get hold of the x,y arrays represented by the curve.
> Has anyone written something to do that already?
> The coordinate axes are a little skewed in the image (originally
> scanned).
>
> Thanks for any help, Kristian
> --------------------------
> Kristian Kjï¿½r, Physics Dept., Risï¿½ Natl. Laboratory, Denmark

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[Message index]

		digitize a curve from an image By: Kristian Kjaer on Fri, 18 August 2000 00:00
		Re: digitize a curve from an image By: Kristian Kjaer on Fri, 18 August 2000 00:00
		Re: digitize a curve from an image By: John D. Sample on Fri, 18 August 2000 00:00
		Re: digitize a curve from an image By: Med Bennett on Fri, 18 August 2000 00:00
		Re: digitize a curve from an image By: mchinand on Fri, 18 August 2000 00:00
		Re: digitize a curve from an image By: Med Bennett on Fri, 18 August 2000 00:00
		Re: digitize a curve from an image By: marc schellens[1] on Fri, 25 August 2000 00:52
		Re: digitize a curve from an image By: Kristian Kjaer on Wed, 23 August 2000 00:00
		Re: digitize a curve from an image By: davidf on Wed, 23 August 2000 00:00
		Re: digitize a curve from an image By: Kristian Kjaer on Wed, 23 August 2000 00:00
		Re: digitize a curve from an image By: Martin Schultz on Wed, 23 August 2000 00:00
		Re: digitize a curve from an image By: promashkin on Tue, 22 August 2000 00:00
		Re: digitize a curve from an image By: Kristian Kjaer on Tue, 22 August 2000 00:00

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