Hi everyone, I'm using a basler camera that allows me to change the camera attributes and set 4 region of interest before acquiring the image. I want to change the dimensions of the four ROI in labview before acquiring a sequence of image, but I don't understand why it doesn't work. Someone has an idea? thank you.

I have no experience with this camera but I would suggest: Make sure your camera supports this feature: https://docs.baslerweb.com/multiple-roi#specifics Check the syntax of the attributes for errors. Enable highlight execution to see where error occurs. Consult the documentation (https://docs.baslerweb.com/multiple-roi). On some camera models, you can only configure rows and not columns when you're creating regions. In this case, each region covers the entire sensor width and can be considered to have a single column. Make sure the camera is idle, i.e., not capturing images. Make sure the Reverse X and Reverse Y feature is disabled.You can re-enable image mirroring after configuring the rows and columns. Note: To avoid undesired side effects, always configure the columns in ascending order, i.e., start with column 1, then configure column 2, and so on. Check the exact ReverseX & ReverseY attributes in code below:

LabVIEW

Camera Basler 4 ROI

Solved!

Is your camera supported as shown on the website? The GigE Vision driver might support the feature but the hardware may not.

Also try IMAQdx Configure Grab after setting the attributes, as in my last attached VI.

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LabVIEW

Camera Basler 4 ROI

Re: Camera Basler 4 ROI