View Full Version : sharpening using high pass filter

25th of July 2001 (Wed), 11:24
I searched dpreview for some notes on sharpening using the high pass filter method, but came up short. Does anyone here have notes, or a link, to a good discussion of the method of sharpening using the high pass filter method?

thanks in advance,


26th of July 2001 (Thu), 06:12
Here's the article they were discussing in dpreview:

http://www.creativepro.com/story/feature/11242-2.html and there "Layer-Based Sharpening" onwards.

31st of July 2001 (Tue), 18:01
It's as simple as abcdfghrmov..

1. Make a copy of the background layer
2. Set the blending mode of the layer duplicate to soft light or hard ligt, depending on the desired effect.
3. Filters > Other > High Pass
4. Set the desired radius. I've noticed that the most natural sharpenig with big images is somewhere way under 20. Some images can be succesfully sharpedened with values like 60 or even more though.
5. Now check the result by hiding and revealing the duplicated layer. You should see the difference only in sharpness, not in colour. Except the slight increase in contrast.

23rd of June 2008 (Mon), 03:53
wow, thanks a lot because this was the exact tutorial that I needed. I'm sick of using unsharp mask because I never seem to get the hang of it. thanks again blackdiamond13 @ Jemsite (http://www.jemsite.com)