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Deuteranopia Vision Colorblind correction?

New Here ,
Feb 28, 2020 Feb 28, 2020

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Hi,

  I am a photographer and someone I work with who is scanning negatives for me has Deuteranopia Vision color blindness.  Does anyone know if there are presets or other aids in photoshop or lightroom to help color correct for Deuteranopia Vision color blindness?  Thanks.

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Community Expert , Feb 28, 2020 Feb 28, 2020

What Photoshop does have in that area are a couple of commands for previewing an image as if it was being seen by someone with color blindness. You can find this information in Photoshop Help, under Proofing Colors in Photoshop. You’ll have to determine whether it’s the right tool for what you’re trying to achieve.

 

Photoshop-Proof-Setup-submenu.jpgexpand image

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Community Expert ,
Feb 28, 2020 Feb 28, 2020

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Can you post a typical example image?

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New Here ,
Feb 28, 2020 Feb 28, 2020

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A

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LEGEND ,
Feb 28, 2020 Feb 28, 2020

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Is this a color change, or simply an exposure change? Exposure changes are easy to fix, you might want to experiment with a single photo to see if that does the trick. (Although, large exposure shifts can create noise in the photo)

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New Here ,
Feb 28, 2020 Feb 28, 2020

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I reworded my original question to possibly help with an answer, thanks.

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New Here ,
Feb 29, 2020 Feb 29, 2020

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Hi there,

  Thank you to Conrad C .  I used the 'view as' function in Photoshop for colorblindness and can now offer an accurate example.  One of these is viewed as Deuteranopia.  The person doing my scanning is barely able to tell the difference between these two images so my question would be, rather than its function of showing someone what it's like to be color blind, is there a reverse tool; preset, screen filter, etc. that would help me, preferably with a batching option, to color correct what he doesn't see as needing color correcting.  I know it's sort of an impossible ask but if color blind glasses are helping people then couldn't that be transferred in someway to color correcting.  Most of his work is just fine but I get real perfectionist sometimes and sometimes have some yellows to fix, etc.

 

chaosfloat_detail_deuteranopia.jpgexpand image

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LEGEND ,
Feb 28, 2020 Feb 28, 2020

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If you can scan a grey card using the same hardware, then you ought to be able to correct all of the photos using the same correction. (By the way, just trying to rule out the obvious, scanning negatives ought to produce horrible reversed colors, that's not the problem is it?)

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Community Beginner ,
Feb 28, 2020 Feb 28, 2020

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If you have major color issues I would expect this to be initially a scanner problem. If so, that may be worth investigating/fixing before you scan 40k negatives.  It may even be cheaper to buy a new scanner than spend the hours addressing it.

 

As for LR are you hoping to apply a batch adjustment ("increase exposure of all scans by one stop") or something else?

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New Here ,
Feb 28, 2020 Feb 28, 2020

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It's not a scanner problem.

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Community Expert ,
Feb 28, 2020 Feb 28, 2020

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Scanning negatives having a lifespan of 40 years will have lots of challenges particular with varying colour shifts due to ageing. Even if there is an obvious neutral area to click on does not guarantee the other colours will render accurately.

I would recommend that you get a suitable scanner software package one that I have used from time to time over 10 + years is called VueScan from Hamrick dot com. Lots of tools available and good support.

There is a free trial so you can check out. 

Screenshot 2020-02-28 at 6.10.36 PM.pngexpand image

Regards, Denis: iMac 27” mid-2015, macOS 11.7.10 Big Sur; 2TB SSD, 24 GB Ram, GPU 2 GB; LrC 12.5,; Lr 6.5, PS 24.7,; ACR 15.5,; (also Laptop Win 11, ver 23H2, LrC 14.2, ; ) Camera Oly OM-D E-M1.

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New Here ,
Feb 28, 2020 Feb 28, 2020

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Thank you, I will have a look.

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New Here ,
Feb 28, 2020 Feb 28, 2020

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We are scanning with an Epson v850 Pro.  It's purely a matter of him seeing white or grey where I see pink and orange, etc. It's a color blindness issue but I appreciate your trying to help.

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Community Expert ,
Feb 28, 2020 Feb 28, 2020

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Sfjessy wrote: “the color is so off that I wouldn't have the time, patience or consistency to correct thousands of them. Does anyone know if there are presets or other aids in photoshop or lightroom”

 

Photoshop and Lightroom have several potential aids. Lightroom has Auto White Balance, and Photoshop has Auto Color. But how much they help is going to depend on what’s wrong with the color in the film scans. If they were scanned properly and the only problem is white balance, then either of the commands above should get it done. But if the scans are off for other reasons, including clipped channels, uneven fading due to poor film processing or age, automatic corrections aren’t going to help.

 

I scan my color negatives using the VueScan software that was mentioned. It has additional options including profiles that help match specific film types, and options like Restore Colors, and Restore Fading. Again, none of these are magic bullets, but they can be useful tools when some film has specific color problems.

 

If the bad color is because of age-related fading, sometimes you can address that by manually adjusting the RGB curves in Lightroom or Photoshop, or shifting channels in Photoshop. In the worst case scenario where color has faded unevenly across a frame, you would then have to go in and manually apply gradient masked or brushed corrections in Lightroom or Photoshop.

 

To get a better answer in this thread, it would be good to see a few example images. If you’re lucky, maybe they just need a white balance adjustment.

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New Here ,
Feb 28, 2020 Feb 28, 2020

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Thanks.  I think maybe this is the wrong forum for the question.  It's not the equipment picking up the wrong color, I think my question should be directed towards a group with an understanding of color blindness rather than equipment but I thank you all for trying to help.

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Community Expert ,
Feb 28, 2020 Feb 28, 2020

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What Photoshop does have in that area are a couple of commands for previewing an image as if it was being seen by someone with color blindness. You can find this information in Photoshop Help, under Proofing Colors in Photoshop. You’ll have to determine whether it’s the right tool for what you’re trying to achieve.

 

Photoshop-Proof-Setup-submenu.jpgexpand image

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New Here ,
Feb 28, 2020 Feb 28, 2020

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Thank you so much! Maybe if that gives me enough information about how he is seeing color I will be able to creat my own preset.  Cheers, Jessica

 

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