"Sketch Generator"

[Darren Null]

Might be useful for smaller or lo-fi image jobs:
http://sporkforge.com/imaging/sketch.php

[Bill Cunningham]

Hey this is kinda cool! If you don't have photograv, this is a quick n dirty binary file generator.. I increased the res to high, and moved the threshold to 15 from 30, and it did a not bad job on my ugly mug.. Try it on yours!

[J Porter]

There's some other software that does about the same called Sketch Master. http://www.thinkersoftware.com/

There may be a free, older version. Read the site pages to find out.

[Darren Null]

Sketchmaster looks like it just edge detects. This'll do the same for free:
http://www.vicman.net/vcwphoto/index.htm

Even if you do have photograv, there's going to be times where the output area is too small to bother firing it all up.

EDIT: I love the "user's comments" on Sketchmaster. The programmer didn't write them, oh no:

Users' opinion:

I handle my photograph with it, letting my friends get a shock. It's very excellent. --Angle Kall,2/20/2006

Power,simply,easy to use. --Mike John,3/5/2005

Oh! I 'cheated and get' the love of my boyfriend with it. --Mary,1/6/2005

It t urned a beautiful moment into my happy memory that will last forever! --Sam,15/10/2005

[Dan Hintz]

Sketch Master looks like a piece of junk. Edge detection algorithms are a dime a dozen, nothing Photoshop couldn't do (and plenty of other freebies out there), and he want $40 for it? He used canned icons to put the interface together, and as Darren points out it looks like he wrote his own "user" opinions. That's pretty pathetic.

[Darren Null]

...but funny
"Oh! I 'cheated and get' the love of my boyfriend with it."
"I handle my photograph with it, letting my friends get a shock. It's very excellent."
Those are my catchphrases for the day.

[Bill Cunningham]

Kinda reads like a direct babelfish translation from something(?) to English :D