[OpenMap Users] Re: Georectify images

From: Don Dietrick <dietrick_at_bbn.com>
Date: Tue, 15 Apr 2008 14:29:08 -0400

Hi Tom,

Tom Soraoka wrote:
>
> I’m new to Openmap and have been tasked to georectify images onto a
> map display. Does Openmap have the ability to georectify images? I
> have an image and 4 user entered corner points (lat/lon). The corner
> points can be vertices to any 4 sided polygon. My goal is to
> distort/skew the image so the 4 corner points of the image match the 4
> corner points of this polygon.
>
> Tom
>
OpenMap doesn't contain code that will georectify images. The approach
I'd like to investigate to do this would be to use Java Advanced Imaging
(JAI) to warp the image using the WarpOpImage class, some Projection
object that defines the projection of the image (source), and a
Projection class that describes the image of the map (destination). The
API looks like this would work, I just haven't gotten around to testing
it yet.

Hope this helps,

Don

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Received on Tue Apr 15 2008 - 14:29:21 EDT

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