Image processing

[praktikant_elosse]

I want to compare to images in LabView, but one of them is somewhat
distorted. But I have a few identification points.

Is it possible to define three points on both images, and then match
them by tilting/ stretching /rotating/ resizing the image. At the
moment the tilting seems to be the problem. To resize and rotate in
separate steps is no problem, but I'd prefer to as many operations as
possible in one step in order to avoid unnecessary blurring.

thanks

[Yusuf C]

Hello,

You can do this easily by using the calibration vi's available in the IMAQ Vision libraries. You can define a coordinate system based on some distinct characteristics and then look for those same characteristic features on the second image. This allows you to transform the second image into the first one's coordinate system.
I hope this helps!

Regards,

Yusuf C.
Applications Engineering
National Instruments