Archived posting to the Leica Users Group, 2006/02/08

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Subject: [Leica] CS2 and noise reduction.
From: scott at adrenaline.com (Scott McLoughlin)
Date: Wed Feb 8 12:51:42 2006
References: <DC4B73A4105FCE4FAE0CEF799BF84B366BAA14@case-email>

In PictureWindow Pro, one can apply noise reduction selectively
using their pretty nice mask function.  Of course, one can do this
repeatedly, with different NR settings and different masks and so
on.

I imagine that PS must have a similar way to mask different parts
of the image and achieve the same thing.

I'm not *against* tools, new tools, better tools, and so on. I'm
just saying that one has to dial in the tool set and tool thrash for
one's own needs/goals and tolerance level.  Within those constraints
there are more than one way to skin the cat.

For example, I took some digi pics that were nice excepting some nasty
noise in the blue channel in the shadows. This was incandescent lighting.

Over on pnet, and while I don't recall all the technical details related
to me on sensor sensitivity to different color channels, a few folks
recommended that I just use a good old fashioned blue filter in these
circumstances - just like the old days!

Scott

David Rodgers wrote:

>Scott empathized:
>
>  
>
>>>I'm in the software biz, and I can certainly relate to your
>>>      
>>>
>concerns.<<
>
>Maybe I'm wrong but I can't help but think there's plenty of noise
>reduction functionality in PS. i.e the code is there. All that's lacking
>is a good user interface.  
>
>I know that sometimes building a UI is a bigger challenge than coding
>algorithms to actually do the work. So a third party builds the UI. Now
>it's a different look and feel, and we have to deal with another vendor.
>
>
>In terms of functionality, I've often found that some things that seem
>almost magical are in reality based on very basic principles. My concept
>of noise management is that you take a given block of data and you make
>it more uniform. It's easy to do that on the side panel of a yellow car
>that's uniformly lit. But it's not so easy in areas where there may be
>subtle shading or color variations that you want to maintain. Most
>challenging might be a mixture of the two. Thus needing a flexible UI.
>
>
>I suppose in an ideal world you'd build an app that would take into
>account the capture device (which I think Noise Ninja and Neat Image may
>do). So why doesn't Nikon Capture have better NR capability for Nikon
>cameras. 
>
>Maybe the day will come when there's a PS version for each brand of
>camera. Adobe could even follow Leica's sales model and for Leica DMR or
>DM offer a limited edition specially engraved CD, and package it in a
>finely crafted hardwood presentation case :-).
>
>DaveR  
>
>
>
>_______________________________________________
>Leica Users Group.
>See http://leica-users.org/mailman/listinfo/lug for more information
>  
>

-- 
Pics @ http://www.adrenaline.com/snaps
Leica M6TTL, Bessa R, Nikon FM3a, Nikon D70, Rollei AFM35
(Jihad Sigint NSA FBI Patriot Act)



Replies: Reply from tedgrant at shaw.ca (Ted Grant) ([Leica] CS2 and noise reduction.)
In reply to: Message from drodgers at casefarms.com (David Rodgers) ([Leica] CS2 and noise reduction.)