topic Re: Draw ROIs on an Image Control in G Web Development Software

Draw ROIs on an Image Control

MadisonBerger — Thu, 09 Sep 2021 23:14:56 GMT

Can I draw custom ROIs on an Image Control in the Web Module?

Re: Draw ROIs on an Image Control

Nikn — Fri, 17 Sep 2021 12:49:11 GMT

When you say ROIs, are you referring to bounding rectangle for an "object of interest". Can you share more details of your application for us to understand the use case better.

Thanks,

Kiran

Kiran Nagaraj| Product Owner | LabVIEW R&D

Re: Draw ROIs on an Image Control

MadisonBerger — Fri, 17 Sep 2021 17:05:13 GMT

Yes, in Labview, I was taking the reference from the Image control to get out the ROI drawn onto the image, and merge the overlay with the image.

Re: Draw ROIs on an Image Control

Nikn — Mon, 27 Sep 2021 10:25:00 GMT

Currently we do not have a solution to mimic image control. However couple of things which you can try:
a) You will have to construct the video with overlay outside of WebVI and then use URL Image for display. The video format supported is that of Motion-JPEG (.mjpg)

b) If you want to avoid constructing video, then you can write JS code to refresh the image periodically with the image + overlay still being constructed outside