>> HELP! I need to convert a photograph to line drawing. I have tried several methods, but none are satisfactory. << Submitted by: Jim using Photoshop 6 with OS X...
What do you do?
PS 911 Team says:
Okay, there are dozens of ways to do this, but to get you started:
Starting with an RGB image in Photoshop
Choose Filter > Stylize > Find Edges. This will isolate the object(s) into definable shapes.
Now, choose Image > Adjustments (Adjust in version 6.x) > Desaturate.
Move and adjust the sliders until you achieve the desired starting point. Then you can select areas to colorize with grays, fill with patterns or otherwise convert.
Another thing you might try is converting to grayscale (as above) by desaturating, then test the "Posterize" mode setting assigning different levels of gray. Start with a low number like 6.
Now set up textures or patterns which simulate the drawing effect you're looking for... hatch marks, charcoal, etc and select the specific color ranges and replace with different value patterns.
Don't forget, once you've boiled your image to basic color (gray) values, there are a number of artistic filters under the "Filters" menu you can try and experiment with.
While there is no exact answer for you -- everyone has different tastes and expected outcomes, this should get you on your way.
From Photoshop 911 Case #04021; CA, USA