How to extract a rectangle from a color image

[zou]

Want to extract a small portion from a large color image.  Can't find a function in IMAQ to do that.  

IMAQ Extract Tetragon doesn't work for color image.  Get error (invalid image type) when used on a color image.

LabVIEW 2014SP1

IMAQ 17.5

Windows 7 Pro

[AnalogKid2DigitalMan · Accepted solution]

George:

See here regarding a built in LabVIEW IMAQ Example. On the IMAQ create functions change the types to RGB (U32).

And use a file dialog or control on the filepath input for the IMAQ Readfile.

EDIT: Forgot Link:

https://forums.ni.com/t5/Example-Program-Drafts/Extract-a-Part-of-an-Image-Using-Vision-Development-...

-AK2DM