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station_two
station_two
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Please refresh my memory re: NR in Bridge previews

Aug 28, 2012 1:52 AM

A major senior moment leads me to ask for help in refreshing my memory regarding the Noise Reduction applied in ACR not being reflected in the Preview panel within Bridge after clicking the Done button in ACR.

 

My recollection was that Noise Reduction and Sharpening applied to a raw image in ACR are not reflected, or at least not fully reflected in the Preview panel nor in the thumbnail in the Bridge Contents panel.

 

I've been trying to do a forum search for a post where one of the high gurus (Knoll, Chan or Schewe?) confirmed this fact in this forum, but due to the aforementioned major senior moment, I've been unable to find the right keywords for my search, so I've come up blank.

 

Thanks in advance.

1016 Views   11 Replies   Latest reply: station_two, Aug 30, 2012 6:40 PM
 
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  • station_two
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    1. station_two,
    Aug 28, 2012 3:35 AM   in reply to station_two
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    Here's an example that illustrates what I'm referencing.

     

    The first screen shot shows an untouched raw image of an accidental camera discharge which is alomost totally black as viewed in the Preview panel of Bridge.  You can barely make faint parts of the boy's face.

     

    The second screen shot is the Bridge preview of the image processed in ACR 7.2 after applying some massive noise reduction and clicking on Done in ACR.

     

    The third and last screen shot shows the Bridge preview of the same image with the same ACR adjustments as number two after opening it in PSD and saving it as a PSD without altering it in any way after opening it in Photoshop, then saving it intact.  That is in fact exactly how the image looks inside ACR too.

     

    The difference in noise reduction is massive.

     

    Obviously this whole thing is an extreme experiment I carried out only to stress-test the noise reduction in ACR 7.2C1.  The shot, as I said, was an accidental camera discharge while the camera was hanging from my neck in the darkened entrance to a pizza place and the flash was off.

     

    So here we go, as per the above explanation:

     

         (Please click on thumbnails for larger views.)

    Screen shot 2012-08-28 at 2.40.05 AM.png

     

    Screen-shot-2012-08-28-at-2.40.38-AM.png

     

    Screen shot 2012-08-28 at 2.41.02 AM.png

     

     

     

    That ACR 7.2RC1 was able to retrieve that much of the image is almost a miracle.

     

    Message was edited by: station_two

     
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  • station_two
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    2. station_two,
    Aug 28, 2012 3:41 AM   in reply to station_two
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    With my apologies, kindly note that I edited my previous message to re-upload the correct images.  I had goofed before.  My bad.

     

    If you open each screen shot in a new window or tab, you can see the screen shots at full size, just as they appeared to me in Bridge Preview.

     
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  • Curt Y
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    3. Curt Y,
    Aug 28, 2012 7:49 AM   in reply to station_two
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    If I am reading this correctly, and often I am not, you see a difference between what the preview shows after noise reduction in ACR and what you see if you open in PS and then just save.

     

    Can this be a result of the thumbnail setting?  Embedded, HQ?  Will trash cache and rebuild affect #2 preview?

     
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  • station_two
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    4. station_two,
    Aug 28, 2012 9:32 AM   in reply to Curt Y
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    Curt Y wrote:

     

    If I am reading this correctly, and often I am not, you see a difference between what the preview shows after noise reduction in ACR and what you see if you open in PS and then just save...

     

     

    No, no, no.  Not at all!  What I see in ACR and in Ps is absolutely identical.

     

    The difference is only in Bridge, specifically in the Preview panel, where the achieved noise reduction is not applied to the Bridge preview (or the thumbnail) of the adjusted raw file.  I only took a screenshot of the PSD file preview to give you an idea of what one would expect to see in the thumbnail and preview of the adjusted raw file if Bridge were applying the noise reduction, which Bridge is not doing.

     

    Of course I tried rebuilding the cache numerous times.  It makes no difference whatsoever.  Also, I'm set to HQ thumbnail, always.  But these are scree nshots of the Preview panel, not thumbnails anyway.

     

    I have the same experience with any and all raw files, it's just that this particular example, by its very own nature, shows it most dramatically.

     

    My recollection is that either the ACR team or Jeff Schewe had once confirmed that something was definitely not applied to the preview; I just can't recall whether it was the Noise Reduction, or the Sharpening, or both.  It was most likely the Noise Reduction that is not applied to thumbnail and previews.

     
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  • CameraAnn
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    5. CameraAnn,
    Aug 28, 2012 4:10 PM   in reply to station_two
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    Have you got "Generate Monitor-sized Previews" checked in Bridge's Prefs?

    That might make a difference?

     
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  • station_two
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    6. station_two,
    Aug 28, 2012 9:17 PM   in reply to CameraAnn
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    CameraAnn wrote:

     

    Have you got "Generate Monitor-sized Previews" checked in Bridge's Prefs?…

     

    I most certainly do.

     

    The more details come back to my now withered brain, the more certain I am that the non-application of noise reduction to Previews of raw files by Bridge had been discussed and confirmed by one or more of the luminaries named above.  I've even identified the one image that prompted that discussion, so maybe the date the image was taken will help me locate the discussion.

     
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  • Curt Y
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    7. Curt Y,
    Aug 29, 2012 7:18 AM   in reply to station_two
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    You might just as well go to the source and post this in Camera Raw fourm.  When you get an answer post back.

     
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  • station_two
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    8. station_two,
    Aug 29, 2012 10:12 AM   in reply to Curt Y
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    Oh, I did, Curt.  Unfortunately, it got somewhat derailed before the Camera team replied.

     

    http://forums.adobe.com/message/4657387?tstart=0#4657387

     
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  • station_two
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    9. station_two,
    Aug 29, 2012 11:54 AM   in reply to Curt Y
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    Well, upon further reflection on what has been discussed in my other thread in the ACR forum, I now think I was right in posting here in the Bridge forum initially.

     

    This is definitely a Bridge issue, not a Camera Raw one.

     
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  • station_two
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    10. station_two,
    Aug 30, 2012 6:19 PM   in reply to station_two
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    Confirmed!  If the crop applied to the raw file is small enough so that the Bridge Preview does not have to zoom out at all, then the Noise Reduction is indeed reflected in the Preview.

     

    Here's the screen shot of the Bridge preview panel:

     

    Screen shot 2012-08-30 at 5.29.37 PM.png

     

    This post reproduced from the thread in the ACR forum:

    19. (<<=== please click link)

     

    Message was edited by: station_two

     
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  • station_two
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    11. station_two,
    Aug 30, 2012 6:40 PM   in reply to station_two
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    MY FINAL CONCLUSION:

    When in doubt about noise reduction or sharpening in the Bridge preview panel, just call up the Loupe! 

     
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