overlay destroyed live image

I want to print text to the level of certain positions on the image captured using Vision Acquisition. I am the image thresholding to detect objects and running then overlay the text in a loop to display the text under each object. In the end, I get the text written under objects, but objects have disappeared (the red marks). Why is this happening?

Result of threshold - does go in the same image as the original? You must copy the image to a separate buffer for processing and display the overlay on the original image.

Tags: NI Software

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