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Converting raster images to SVG

I needed to merge photos I took of a setup with some figures of data. I was thinking to convert my photo (.jpg) into svg format (my idea was that it would be zoomable, and perhaps smaller in size). However, a look at scale-a-vector suggested to me that the conversion is not worth it. So I'm merely going to paste in my bitmap photos of the setup onto my vector figures of the data.
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