I don’t understand why a Photoshop filter couldn’t
be created to simulate the woodcut images.
Such a program would actually have to be intelligent; it would have to understand what the image is a picture *of*.
Look at an issue of the Wall Street Journal. The artists creating the woodcut illustrations will do things like create the lines in such a way as to suggest 3D shapes, by curving the lines to follow the contours of an image in three dimensions. A computer program is working form a 2D image; we can look at a 2D picture and intuit what the 3D shapes are, becasuse we’ve seen these shapes in three dimensions. A computer hasn’t.
A computer sees an image as nothing but a long series of numbers. It can’t recognize objects and shapes very well, and it can’t project an undrstanding of a 3D form onto a 2D image the way your brain can.
I suspect that producing top-quality woodcuts is probably what computer scientists call an "AI-complete" problem–that is, a problem that can’t be solved by a computer unless that computer is actually intelligent the way a human being is intelligent.
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