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Reducing Grain With Photoshop  
User currently offlinePUnmuth@VIE From Austria, joined Aug 2000, 4162 posts, RR: 54
Posted (12 years 12 months 2 days 21 hours ago) and read 1825 times:

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


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2 replies: All unread, jump to last
 
User currently offlineCkw From UK - England, joined Aug 2010, 713 posts, RR: 16
Reply 1, posted (12 years 12 months 2 days 20 hours ago) and read 1784 times:

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
User currently offlineUSAir_757 From United States of America, joined Jun 2000, 996 posts, RR: 9
Reply 2, posted (12 years 12 months 2 days 18 hours ago) and read 1770 times:

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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