I found a bunch of little tiles in Lowes with a lot of neat designs that I thought could look amazing as engravings using the scanner capability directly rather than scanning them and going through Inkscape. What I found was very disappointing. Not only was there no way I could find to choose what level of gray to pick as the outline, but it kept finding detail in smooth lines that was not there, and totally missing larger bits that were there.
So OK finding outlines is very imperfect, but taking a photo just like an uploaded photo aught to be easy… But no the engrave is just engraving the already bad outlines to a single level, so again it is the same issues. Just using the photo alone as it would any other photo, which should be very easy, and would be a huge improvement.
I fully understand that you don’t want to create the software to do complex manipulations, and perhaps not even show your hand in outlining, but just exporting a jpg of your scan should not be that hard, and then leave it to us and our programs to go from there.
Hear are a few examples I made with both parts shown:
This almost worked
And this a total fail