How to use this code for 3d data

[GoogleCodeExporter]

1.How can we use this code for 3D data
2.Is there any possibility for reducing no of points
3.how to extract points offline 

I can able to extract the points for 2d image i need how to modifiy for 3D 
image 
please help me out how to do for 3D image 

Original issue reported on code.google.com by [email protected] on 23 Jan 2015 at 7:28

Attachments:

• 000.jpg

[GoogleCodeExporter]

I have tried by cropping but it is not showing exactly what should i do??
and i dont have code to extract the points too.

Original comment by [email protected] on 23 Jan 2015 at 7:29

[GoogleCodeExporter]

Please help me out 

Original comment by [email protected] on 23 Jan 2015 at 7:30