How image rotation and displacement by using different origins

Hello
 
I use LabVIEW 8.5 and 8.5 of Vision.
 
I need to rotate, scale, and move a 2D image regarding one aspect of the image. I use IMAQ turn and shift, but I don't know what is the point of reference or originally used in this function. The coordinates of the image is very important in my application because I need these details to complete the recording of the image.

My question is as below:

(1) the origin (0,0) of an image is located in the upper left corner, can I change it to the center of the image?

(2) how can I specified a certain point (coordinated) as a reference for the rotation and scale?

Your help is very appreciated. Thank you.

Hello

Thanks for the idea, I'll try it soon.

Best wishes

Tags: NI Software

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