2D image recognition tool

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christopher@dailycrossword.com - 30 Oct 2006 04:13 GMT

Hey y'all,
this is a UV Wrap from blender:
http://www.pyroteknots.com/pix/blender/grid.jpg
I am looking for a tool or API that can identify intersections in a
grid like this. Actually, I want a tool that can take an image like
this and morph another 2D image onto it in a weighted deformation. I
figure I will have to write the second one.
Thanx!

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Andrew Thompson - 30 Oct 2006 05:46 GMT

> Hey y'all,
> this is a UV Wrap from blender:
> http://www.pyroteknots.com/pix/blender/grid.jpg

Dunno' about the rest of it, but just thought I'd comment
the author of that image has no idea of the advantages and
disadavantages of particular image formats.

A 'black and white line trace' image is well suited to being
16(*) color and GIF or PNG, rather than JPG.

The 220 Kb JPEG reduces to a 46Kb (16 color) GIF.

* Or even '2 color'.

Andrew T.

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Oliver Wong - 30 Oct 2006 17:00 GMT

> Hey y'all,
> this is a UV Wrap from blender:
[quoted text clipped - 3 lines]
> this and morph another 2D image onto it in a weighted deformation. I
> figure I will have to write the second one.

I don't know if you'll find an off-the-shelf solution. There are some
published algorithms, though. See
http://homepages.inf.ed.ac.uk/rbf/CVonline/feature.htm and in particular
http://homepages.inf.ed.ac.uk/cgi/rbf/CVONLINE/entries.pl?TAG404

- Oliver

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2D image recognition tool

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