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Machine Vision

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Overlay disappears

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When I generate an array of images with text overlays, if I perform any processing those overlays disappear.  What's going on?

 

In the attached example, I generate a series of images.  Those are passed into a rotation VI which seems to strip the overlay away.  Is this expected?

 

Thanks,

 

XL600

 

 

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Expected behaviour.

Can be changed with IMAQ Set Overlay Properties...

http://zone.ni.com/reference/en-XX/help/370281AD-01/imaqvision/imaq_set_overlay_properties/

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Solution
Accepted by topic author xl600

b.ploetzeneder is right!

You can give your text overlay a group name when you set the overlay initially. Next, we can make sure we're using the IMAQ Set Overlay Properties VI and specifying the group name that we set for our text overlay. Then we can change the Property for Rotate and its behavior (Clear, Keep, Transform). 

R Dahlman

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Worked like a charm, and even bumped up my FPS rate a bit since I was merging the overlay before.

 

Thanks!

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