1. Take an image (this is Franklin bridge in Philadelphia):
2. Find the edges in the image and make them into a dark outline:
3. "Posterize" the brightness to make it look cel-shaded:
4. Layer the edges onto the posterised image and desaturate slightly:
You can download this filtering effect as a plugin for ImageJ from my website: here.
Software used:
ImageJ - Scripting and image processing
Very cool - imo it would be neat if you could have a sharp pine between gradients (e.g. the blues in the sky) as opposed to bitty cels. Could you have changed the cel-shader just for that area, or (nicer) just for areas with shallow gradients?
ReplyDeleteI guess you mean just smoothing out the smooth gradient bits more (sky etc...). I shall have a tweak :)
ReplyDeleteHey, nice site you have here! Keep up the excellent work!
ReplyDeleteImage Processing