• Global community
    • Language:
      • Deutsch
      • English
      • Español
      • Français
      • Português
  • 日本語コミュニティ
    Dedicated community for Japanese speakers
  • 한국 커뮤니티
    Dedicated community for Korean speakers
Exit
10

P: Averaged white balance reading with White Balance Selector

LEGEND ,
Jul 26, 2011 Jul 26, 2011

Copy link to clipboard

Copied

I will often click on a gray card with the White Balance Selector to white balance an image. However, if I click on that same gray card multiple times I will get a slightly different result each time, as if it's giving me a reading on a single pixel on the gray card rather than an area. As a parallel in Photoshop, it's like using the "1x1 average" with the eye dropper.

Perhaps it might be nice to give the option of a 3x3 or 5x5 average, or perhaps you could drag the eyedropper over a gray card and it would sample several times over that area.

I figured that an averaged white balance would give a better result rather than a single pixel's white balance.

-Bruce!

Idea Released
TOPICS
macOS , Windows

Views

259

Translate

Translate

Report

Report
Community guidelines
Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
community guidelines
14 Comments
Enthusiast ,
Jul 26, 2011 Jul 26, 2011

Copy link to clipboard

Copied

White balance in Lightroom is averaged over a 5x5 pixel area. There is no option to change it currently.

Votes

Translate

Translate

Report

Report
Mentor ,
Jul 26, 2011 Jul 26, 2011

Copy link to clipboard

Copied

Are you sure about this Rikk? I thought it was 5x5 at whatever your view size is, so zooming out makes it cover a wider range. No?

Votes

Translate

Translate

Report

Report
Enthusiast ,
Jul 26, 2011 Jul 26, 2011

Copy link to clipboard

Copied

Pretty sure. see this thread: http://www.lightroomforums.net/showth...

Loupe changes the precision with which you may view the selection but not the sample area.

Votes

Translate

Translate

Report

Report
Mentor ,
Jul 26, 2011 Jul 26, 2011

Copy link to clipboard

Copied

I can't see that thread, but I'm reasonably sure that I'm correct about this - zooming out will get you a wider averaging area with the WB picker. Changing the size of the grid will not.

Votes

Translate

Translate

Report

Report
Enthusiast ,
Jul 26, 2011 Jul 26, 2011

Copy link to clipboard

Copied

Unless there has been an undocumented change in the code since July of 2010, this is not the case. We constructed test graphics and verified this at that time. i didn't realize the link was restricted. Essentially we constructed a test graphic with a 5x5 white pixel trap and tested it at various loupe levels.

I will discuss with the team today and see if I can get clarification.

Votes

Translate

Translate

Report

Report
Participant ,
Jul 27, 2011 Jul 27, 2011

Copy link to clipboard

Copied

My recollection matches Lee Jay's -- zooming out increases the sample area. I haven't tested recently.

Votes

Translate

Translate

Report

Report
Enthusiast ,
Jul 27, 2011 Jul 27, 2011

Copy link to clipboard

Copied

Tested today and verified with the team. 5x5 pixels. Mark, I know you can access the thread mentioned above as you were part of the discussion last July at LRForums

Votes

Translate

Translate

Report

Report
Mentor ,
Jul 27, 2011 Jul 27, 2011

Copy link to clipboard

Copied

Turns out we're both right, but you're right for Lightroom (5x5 always). Possible future enhancement.

Votes

Translate

Translate

Report

Report
Enthusiast ,
Jul 27, 2011 Jul 27, 2011

Copy link to clipboard

Copied

I like it when everyone is right.

Votes

Translate

Translate

Report

Report
Participant ,
Jul 28, 2011 Jul 28, 2011

Copy link to clipboard

Copied

I can prove that Lightroom's white balance dropper is sensitive to zoom level:

Create a file with a 5x5 gold square in the middle surrounded by blue. Import into LR, press W, click the WB dropper in the middle of the square at 1:1 and 1:4; you'll get different results. (I'd attach a test file, but it needs to be TIFF to work in LR, and this forum doesn't allow TIFFs. I can mail it to you if you're interested.)

Votes

Translate

Translate

Report

Report
Enthusiast ,
Jul 29, 2011 Jul 29, 2011

Copy link to clipboard

Copied

After working with Mark's test files which he emailed to me, I suspect what is happening is that at views 1:2, 1:3, 1:4 that Lightroom is measuring White Balance from the resampled preview rather than the original Raw file. We are currently working to confirm this with the team.

Votes

Translate

Translate

Report

Report
Community Expert ,
Jul 29, 2011 Jul 29, 2011

Copy link to clipboard

Copied

The answer is that the 5x5 is screen pixels rather than image pixels so will vary with zoom ratio.

Votes

Translate

Translate

Report

Report
Enthusiast ,
Jan 09, 2012 Jan 09, 2012

Copy link to clipboard

Copied

LR4 has changed White Balance sampling behavior.
http://blogs.adobe.com/lightroomjourn...

Votes

Translate

Translate

Report

Report
New Here ,
Jun 01, 2023 Jun 01, 2023

Copy link to clipboard

Copied

LATEST

Improve the white balance eyedropper by making it possible to use the average of several pixels for WB instead of sampling one individual pixel. Currently, due to color noise in images, the WB eyedropper is sensitive to the exact pixel being sampled. Move the eyedropper just one pixel up or down and you will get a different WB. 

Would be excellent if it was possible to draw out a rectangle when using the WB eyedropper and use the average of the pixels within the selection for WB. 


Screenshot 2023-06-01 at 11.35.05.png

Votes

Translate

Translate

Report

Report