
So as I said earlier, tracing by hand using the Pen tool, would be the best approach for that kind of image. The kind of image which can give the best trace result would be a heavy, solid, black line on a solid white or solid colored background.

The attachment shows my result from tracing with the Grays option. The problem is that Inkscape traces exactly what it "sees". But 2nd, the reason you could see something in the preview window, is because that option looks only at shades of gray, which is what your image is made of.

When you switched to the Grays button, it did 2 things. Inkscape's "eye" can't figure it out.Ĭhanging the file name did not have anything to do with it. Because your human eye can make out the proper outline. The best approach for tracing that image is to trace it by hand, with the Pen tool. The problem is that your original image is not really in the kind of condition where you can achieve a good trace, using auto trace. So in your 2nd screenshot, where the pattern pieces are on the right, and there is the solid line on the left, did you trace that with the Pen tool?
