RasterPlotter.jar - Jar download: java -jar RasterPlotter.jar:
Usage: RasterPlotter pathToImage thresholdValue
Extremely naive image to svg tool. RasterPlotter assumes input image is a monochromatic dithered image with black and white pixels only, the output will appear negative/inverted, this is so it can be plotted by a pen plotter. thresholdValue only defines the minimum line length so the pen plotter doesn't attempt to draw hundreds of lines of length 1. There's an additional -iso argument that instructs the SVG output to only draw every other line, eg. RasterPlotter.jar 10 -iso (displayed in the photo below).
To use with DitherKt where jrun is an alias to a Java JDK:
jrun DitherCL.jar image.png 5x3Bayer | tail -1 | (read dithered; jrun RasterPlotter.jar "$dithered")
Example output plotted using an Axidraw:
