Using Python Visual to annotate background images - can't make transparent

michaelstone — Thu, 15 Aug 2019 04:27:47 GMT

Hi all,

We have built a Power BI report which display images using the simple image visual and we want to overlay bounding boxes on top of the image.

Our idea was to use a Python visual which sits on top of the simple image visual and use matplotlib to draw rectangles but we can't find a way to make the Python visual use a transparent background.

We've tried changing the background setting but this does not work.

I'm guessing it may be something that needs to be configured in matplotlib and I'm wondering if anyone has any suggestions for us?

Thanks,

Michael

Re: Using Python Visual to annotate background images - can't make transparent

michaelstone — Sun, 18 Aug 2019 23:33:34 GMT

After further mucking around, managed to find the solution.

Basically need to set the frameon parameter in the figure to false e.g.

plt.figure(frameon=False)

Hope this helps someone in the future!

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Using Python Visual to annotate background images - can't make transparent

Re: Using Python Visual to annotate background images - can't make transparent