PUnmuth@VIE
Topic Author
Posts: 3119
Joined: Thu Aug 24, 2000 9:31 pm

Reducing Grain With Photoshop

Wed Apr 25, 2001 8:44 pm

Hi!
Could someone pleeease give me a hint on how to reduce grain in photoshop. I couldn't manage to find it out (stupid me)
THX
Peter
-
 
ckw
Posts: 4586
Joined: Fri Aug 27, 2010 12:26 am

RE: Reducing Grain With Photoshop

Wed Apr 25, 2001 10:08 pm

Strictly speaking, you can't reduce grain - you can try and minise the effect using the variations of blur or noise filtering, but these will also degrade the detail in other parts of the image. There is reportedly a plugin for Photoshop which reduces grain, but I've not heard good reports.

You can however, reduce grain at the scan stage - Vurscan incorporates an algorthm for this which works quite well, as does the new Nikonscan 3 software - I guess others will follow.

It is "easier" to remove grain at the scan stage because the system has much more data to work with ... once that data has been converted into a tiff or bmp file, it becomes more difficult to distinguish grain from wanted detail.

Cheers,

Colin
Colin K. Work, Pixstel
 
USAir_757
Posts: 949
Joined: Wed Jun 14, 2000 12:30 am

RE: Reducing Grain With Photoshop

Wed Apr 25, 2001 11:56 pm

My method of "reducing" grain is simply sharpening using the unsharp mask. I used a smoothing filter once and I will never do that again.

Unsharp mask:

Click for large version
Click here for full size photo!

Photo © C. Wassell



Smoothing filter:

Click for large version
Click here for full size photo!

Photo © C. Wassell



Please email me for how I do it.

Regards,
Cullen
-Cullen Wassell @ MLI | Pentax K5 + DA18-55WR + Sigma 70-300 DL Macro Super

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