It is possible, but a bit roundabout.
Paste the image into a drawing canvas object. Save the snapshot. Then you'll have access to pixel data at x/y. Loop through coordinates at your desired resolution, and set an overlapping collision tilemap's tiles accordingly by comparing the pixel data at each location if black/white. It only needs to be done once at start of layout, so it should probably be fine to use a high resolution, or go pixel by pixel even.