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Digital BW, The Print

Index last updated: 2026-04-28 22:56 UTC

Message

Re: Grain reduction

2004-01-26 by B. Alex Pettit Jr.

Marc,

Download a demo copy of PictureWindowsPro and try the gaussian blur.

Create a mask which avoids getting too close to objects needing to be 
maintained sharp. 

GaussianBlurr 5 - 15 pixels but apply only a small percentage... open 
a preview window and magnifiy to watch the results.

If you can create a mask which does not cause blurring of the other 
part of the photo, sky and clouds look excellent with quite a bit of 
'defocusing'.

PicWinPro uses 16 bit operations for all functions

Good Luck,
Alex




--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "marcsien77" 
<marcsien77@y...> wrote:
> I would greatly appreciate advice on a PS technique to reduce grain 
> from an almost uniform overcast sky area of a BW image.  The rest of 
> the image is fine so I was thinking of doing something with a layer 
> mask but so far I had no luck.  Many thanks in advance, Marc.

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