>>2258900Yes. It's incredibly easy to do. This took me like 30 seconds total. Googled "Leonardo da vinci sketch" grabbed an image at random, put in photoshop, doubled the canvas height, duplicated the image, went to the menu Image > adjustments > levels. Use the white dropper to select a medium tone (turning everything that value and lighter to white), use the black dropper to select a medium tone (turning everything that value and darker to black). Then desaturate to make sure it looks like back ink.
I think you can imaging how much crisper this would look if the sketched lines were a little more solid, and the paper was whiter with less blemishes.
Definitely took me longer to type this out than to do that, so it's quite literally easier done than said.