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View Full Version : A nice new way to sharpen

feenster
28-09-2005, 20:43
Hi folks,
I've just come across this on DPReview and gave it a try. Its a really nice flexible way to sharpen, and gives great results - it seems not to produce the halo's you can sometimes get with USM on its own.

1: Flatten the image
2: Select the background layer and duplicate it twice (CTRL+J in Photoshop)
3: On the top layer, goto Filter->Other->High pass and choose a value between 5-15%. Click OK, set the blending mode of the layer to hard light. Choose an opacity somewhere between 30-50%
4: Select the middle layer. Goto Filter->Sharpen->Unsharp mask and use the following values: Amount- 400%, Radius- 1.5-3.5px, Threshold- 0. Set the blending mode to Luminosity and change the opacity to between 80-95%.

Obviously, give it a shot and work out what settings work best for you. On my files converted straight from Canon RAW, I had to use the upper limits of these values. It gives a really nice flexible sharpening method - you can add masks, and tweak the values till you get it just right.

If anyone gives it a shot, post up some examples for others to see (can't access my FTP at the moment)

Matt
dod
29-09-2005, 19:08
Hmm, interesting, the layer method seems to add a bit of contrast, will play about with it when I've mpore time. First unprocessed, 2nd is PS USM, third is the layered method.

http://premium1.uploadit.org/scottydod//thistleunprocessed.jpg

http://premium1.uploadit.org/scottydod//thistlepsusm.jpg

http://premium1.uploadit.org/scottydod//thistlelayerusm.jpg
Gandhi
07-10-2005, 21:25
I've just noriced a very bizarre optical illusion here, as I scroll the screen with my mouse wheel the petals move in quite a strange fashion (checks contents of roll-up?)
stepheno
08-10-2005, 21:11
That makes two of us - most odd :Ponders:

regards
milou
08-10-2005, 22:10
'Nam flashback!
Bachs
08-10-2005, 22:49
Tott'Nam? :lol:
Marcel
09-10-2005, 09:20
Tott'Nam? :lol:
:lol:
DJW
14-10-2005, 20:18
Read a good technique on Fred Miranda site that only sharpens edges. Haven't tried it yet but instructions here (http://www.fredmiranda.com/article_3/)
Gandhi
14-10-2005, 22:17
Tott'Nam? :lol:


no chippen 'nam! it's a jungle. trust me.
Marcel
15-10-2005, 01:06
How 'bout Eggs'Nam? :D
feenster
15-10-2005, 11:19
What on earth are you lot on about? :-S

Matt
Marcel
15-10-2005, 16:57
I have no idea.
kamion
09-03-2006, 13:41
3: On the top layer, goto Filter->Other->High pass and choose a value between 5-15%. Click OK, set the blending mode of the layer to hard light. Choose an opacity somewhere between 30-50%


Why doesn't my trial version of Photoshop CS2 have a value setting in High Pass filter popup window? Thanks.