BridgeCC & PhotoshopCC 2014: Grayscale images displaying differently.

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  • Updated 3 years ago
On my color managed EizoCG224W monitor, I noticed that deep shadows in my grayscale PSD images are displaying darker in Bridge than in Photoshop.

To confirm what I was seeing I made a solid dark gray square (RGB 22 22 22) in Photoshop and saved it. I got Bridge to display it's version of the square on the same monitor as I was viewing the Photoshop image on.

DigitalColor Meter showed the Eizo monitor was getting RGB 22 22 22 for the Photoshop square but my monitor was using RGB 17 17 17 to display the Bridge square on the same display. That confirmed the darker view I was seeing... on my Eizo.

I then tested four other staff Macs. (results below) 3 were dual-monitor workstations and one was an iMac. All these Macs are color managed. XRite i1display3.
I got varied results. For some, Bridge and Photoshop were the same same, for others they displayed differently.

REQUEST
Are you able to test a dual monitor setup to see if you get differences too?
I'd really like grayscale images in Photoshop and Bridge to match each other when I view them on my Eizio.

Could it be a difference between the way Bridge and Photoshop use the monitor Profile?

Thanks
Peter Miles

---------------- Test method & results --------------------------------------

1- Open Photoshop and Bridge
2- Hide the Photoshop application frame (menu~/Window/Application frame (Mac))
3- In Photoshop make a 500pixel square canvas (sRGB)
4- flood it with solid RGB 22,22,22
5- save it to a folder that Bridge is currently displaying. Wait for bridge to build the thumbnail.

Compare: DigitalColor Meter
6- Open Applications/Utilities/DigitalColor Meter
7- set meter to display "RGB as Actual Value" (monitor RGB)
8- with both the Bridge 'square' and the Photoshop 'square' displayed on the same monitor, measure the RGB values with DigitalColor Meter for the two squares.

DigitalColor Meter (RGB values going to monitor)

Workstation 1 - (OS10.7.5)
Eizo: Photoshop vs Bridge
R 22... 17
G 22... 17
B 22... 17
Dell2711: Photoshop vs Bridge
R 22... 21
G 22... 21
B 22... 21

Workstation 2- (OS10.9.5)
Laptop Mon: Photoshop vs Bridge
R 29... 19
G 29... 20
B 28... 22
Studio Display: Photoshop vs Bridge
R 28... 28
G 28... 28
B 28... 28

Workstation 3- (OS10.9.5)
Laptop Mon: Photoshop vs Bridge
R 22... 21
G 22... 22
B 22... 20
Studio Display: Photoshop vs Bridge
R 22... 21
G 22... 22
B 22... 20

Workstation 4: (OS10.9.5)
iMac Display: Photoshop vs Bridge
R 28... 28
G 28... 28
B 27... 27

Only for the studio display on workstation2 AND the iMac, did Bridge and Photoshop match each other, for the display of the test square.

Thanks
Peter Miles

Other Details...
Workstation 1: EizoCG 241W / Dell2711 both profiled. OS10.7
Workstation 2: MacbbokPro 2011 / Apple Studio Display OS10.9.5
Workstation 3: MacbbokPro 2011 / Apple Studio Display OS10.9.5
Workstation 4: iMac2011 OS10.9.5
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peter Miles

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Posted 3 years ago

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Chris Cox

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Yes, Bridge and Photoshop work a bit differently when displaying images.

Bridge is not intended to be as color accurate as Photoshop, and converts most images to sRGB (for it's cache) before converting them to the display profile - which can result in some loss of detail.
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peter Miles

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Thanks for the reply Chris.
Chris, Is there any way for you could advocate for having the color and contrast accuracy of Bridge improved? Not necessarily perfect, just improved.

There are so many instances where improved color and tone accuracy in Bridge would be tremendously helpful to me in my job of color grading.
I also get to see the way the photographers I work with use Bridge. I can see how improved color and tone accuracy would benefit them in their decision making process when editing.

The loss of detail in bridge I kind of expect in thumbnails. It's changes to the image contrast of the thumbnail that is an issue for me as a color grader. Relative colorimetric conversion to sRGB for the thumbnail should be able to leave the tone distribution (contrast) of neutral gray axis unaffected.

Thanks
Peter Miles

NOTE: I color grade 'teams' of 10-20 images by having them in my field of view in the background as I'm adjusting one of them in Photoshop.
I use my eyes to compare and match, to quickly identify what needs changing. Trying to remember color, tone and 'feel' in my head in an absolute sense and editing each image in isolation is both slower and less consistent.
Bridge mostly serves this purpose for me very well. Especially with multiple 2GB+ files that would be too difficult for my Mac have open at the same time.
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Chris Cox

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I think there is already a feature request for more accurate color handling in Bridge. Ah, here it is, where you entered it about a year ago: http://feedback.photoshop.com/photosh...
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peter Miles

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Thanks for remembering back that far Chris. I'd be happy leaving the ProPhoto thumbnail idea for now, and settling for getting Bridges sRGB thumbnail conversion looking good.

Seeing all the traffic your team deals with on this site on a daily basis l feel humbled, but encouraged, that you remember a post from a year ago that only had eleven people liking it.

Best regards
Peter Miles