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Re: Warping surfaces to match control points [message #25654 is a reply to message #25651]

Thu, 05 July 2001 08:35

Dick Jackson
Messages: 347
Registered: August 1998

Senior Member

"Brad Nelson" <brad.nelson@nrc.ca> wrote in message
news:4e53fd15.0107050552.1442c0ea@posting.google.com...
> I purchased a magnetic field grid which was generated from poor
> navigation data. When we flew through the area again and measured the
> magnetic field, many of the anomalies were displaced by km. Does
> anyone have an IDL procedure for warping an existing image (my grid
> data) to a set of control points (my flight measurements). All of the
> warping programs that I have seen rely on two images and a few "this
> pixel should be over here" control points. Nowhere have I found an
> algorithm that takes many points and matches features. Any
> suggestions?

I haven't used it before, but from the online help, I think WARP_TRI may be
just what you're looking for.

Cheers,

--

-Dick

Dick Jackson / dick@d-jackson.com

D-Jackson Software Consulting / http://www.d-jackson.com

Calgary, Alberta, Canada

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		Re: Warping surfaces to match control points By: Dick Jackson on Thu, 05 July 2001 10:57
		Re: Warping surfaces to match control points By: Dick Jackson on Thu, 05 July 2001 08:35

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