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P: Samsung Expert Raw DNG output shows green/over exposed photo in Lightroom

Forum|Forum|1 year ago
July 2, 2024
10 replies
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It looks like something with Lightroom is incorrectly processing Samsung s23 ultra expert raw photos. They now immediately turn green when opened in Lightroom. This was not the case before. The bottom are photos that were done before and the top are what happens to them now.

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Correct answer flyingdogfish

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@Eugen38751249qo17, I dug into the first of your problem DNGs, 20240720_210626.dng, and the evidence strongly indicates this is a problem with the DNG itself, not LR's rendering (see below). There have been many reports over the past year or two of problems with DNGs produced by Samsung's Expert Raw app:

https://community.adobe.com/t5/forums/searchpage/tab/message?sort_by=-topicPostDate&advanced=false&allow_punctuation=false&q=samsung%20expert%20raw%20dng

This post in the Camera Raw forum suggests that uninstalling Expert Raw and reinstalling the latest version fixes these symptoms (but only for photos taken after reinstallation):

https://community.adobe.com/t5/camera-raw-discussions/samsung-dng-looks-fine-through-windows-photos-looks-washed-out-green-in-camera-raw/m-p/14738399

That aligns with Adobe employee @Sameer K's advice that the most recent version of Expert Raw fixes some previously reported issues with DNGs.

Unfortunately, the Samsung app isn't recording a human-intelligible version number in its DNGs (as reported by Exiftool), so I can't tell from your sample DNGs which version produced them.

Examining the DNGs

Here's the JPEG preview embedded in the DNG by the camera app (which LR initially shows after import) and LR's much-different rendering:

The Rawdigger app lets you examine the raw data in each of the red, green, and blue channels. It shows that the sky and highways have blown-out highlights in each of the RGB channels:

The Rawdigger data aligns with LR's rendering, indicating there's a problem with how the Expert Raw app is recording DNGs.

Exiftool shows that the DNG uses JPEG XL compression, and LR says "Lossy Compression: Yes" in the Metadata > DNG panel.

@johnrellis

I can confirm reinstalling expert RAW fixes the problem in newly created images. Thanks!

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body_Walbeek6413

Participant

When I turn on the function lossless RAW on my samsung galaxy s23 ultra lightroom mobile can't render the details and blows out the whole picture. Please Adobe fix this...

johnrellis

Legend

@body_Walbeek6413, see here for a fix:

https://community.adobe.com/t5/lightroom-ecosystem-cloud-based-discussions/p-samsung-expert-raw-dng-output-shows-green-over-exposed-photo-in-lightroom/m-p/14811265#M94219

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Anonymous

Hi. Trouble. The same problem. All files shot with expert raw in Samsung (Samsung's Expert raw program was installed last from the store) Adobe Lightroom in win 10 (and in android) open in green and with an overexposed image. I also noticed that if you uncheck the "save lossless" checkbox, this problem will disappear (do not enable this flag). The only possible way is to save the embedded jpg (FastStone). But the resolution immediately drops there (300 dpi v.s. 96 dpi). They write that jpg XL is inserted inside the DNG container, but this does not make it easier for me. How can I restore my files that are so dear to me now? How do I save files in full resolution?

johnrellis

Legend

@33087848, Update to the latest Expert Raw version as described here:

https://community.adobe.com/t5/lightroom-ecosystem-cloud-based-discussions/p-samsung-expert-raw-dng-...

That should fix the issue with future DNGs you take.

"The only possible way is to save the embedded jpg (FastStone). But the resolution immediately drops there (300 dpi v.s. 96 dpi)."

What matters is the pixel dimensions of the JPEG, not the recorded DPI. Double check the dimensions -- with other problem Samsung DNGs, my Faststone shows the JPEG dimensions as 5712 x 4284.

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Anonymous

Samsung shoots 3000x4000 in jpg

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Paul_Vernis66

Participant

j'ai un problème avec les fichiers .dng pris avec mon galaxy s23 avec expert raw en 50MPx, une fois importée dans Lightroom mobile il ya un gros défaut d'exposition, tout apparaît plus sombre.. comment régler le problème je pense ne pas être le seul dans cette situation

[moved to the correct community, and from bugs to discussions according to the community rules - Mod.]

johnrellis

Legend

@Paul_Vernis66, try the workaround here:

https://community.adobe.com/t5/lightroom-ecosystem-cloud-based-discussions/p-samsung-expert-raw-dng-output-shows-green-over-exposed-photo-in-lightroom/m-p/14759126#M93511

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Arvid Terzibaschian

Participant

Just for the sake of completion: I am able to recover those files with faststone image viewer. It loads them and shows them "in a good looking way", I can also adust brightness curves and then export to jpg etcetc.

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Arvid Terzibaschian

Participant

here is one example, it worked flawless a few months ago, only difference in exif in file header is samsung version (cannot attach file, so uploaded here

https://drive.google.com/drive/folders/1qWFtMNJlIuYo8IWi8hTMEHAEBjqDVXwo?usp=sharing)

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Jiwa38982426rf4n

Participant

Hello everyone!

I have a Samsung Galaxy S22 Ultra and the latest lightroom Version.

On my last trip, I took some raw photos. Once I import them to lightroom mobile they get overexposed and with a green tint. Its not a matter of preset or editing. This happens once the photo is loaded in lightroom.

I never expirienced anything like this before. The photos get unusable, you cant edit them back on their original colors etc.

Seems like its some kind of file reading error? I dont know how to fix. I tried re install, nothing changed.

All the photos of that trip get this treatment.

I tried to import some old photos, and they are read as they're supposed to. But not any newer that I capture.

Here is a screenshot.

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Eugen38751249qo17

Participating Frequently

read everything above and you will find your answer:)

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Covah31852031n2uw

Participant

I noticed I had the same issue on all my raw photos I've been taking this summer with my S21 Ultra. I wanted to check them on my computer where they turn all green when/overexposed when I open them in Photoshop and I did not save .jpg as a backup. I also photographed multiple objects for photogrammetry during a trip where I was counting on being able to use the extra information in the raw data to produce a clean mesh.

I mean if the photos truly are lost this sounds like a major fu**up by Samsung? There must be a lot of people affected, maybe some just don't know it yet? And in that case thank you for ruining several hundred photos Samsung...

Is there no other way of recovering the files at all? I tried running them through the DNG converter application but the resulting file had the same issue.

johnrellis

Legend

@Covah31852031n2uw: "Is there no other way of recovering the files at all?"

See my post above:

https://community.adobe.com/t5/lightroom-ecosystem-cloud-based-discussions/samsung-expert-raw-green-photo-dng-problem/m-p/14754814#M93460

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guilhermer56884397

Participant

I had the same issue. The solution is: uninstall expert raw on galaxy store then reinstall it. The problem will disappear.

Balakay612

Participating Frequently

Hi. I've got a bunch of DNG images from my phone that appear just fine in the Windows preview pane, or in the Windows photo display "app." But as soon as I try to open them in Camera Raw, they look like garbage. The weird thing is photos from the same phone, from a prior outing, seem to work just fine with Camera Raw, so I'm not sure why images that look "fine" in File Explorer look so completely wrong in Camera Raw. Here's what I mean: In the first photo, the preview looks fine, the Camera Raw preview is all wrong; in the second photo, the preview looks fine, and the Camera Raw preview looks correct. Both images were shot on the same phone: I have no idea why I'm getting these results nor what to do to correct things. Any thoughts? Thank you.

Photoshop 25.9.1

Camera RAW 16.4
Windows 11

Samsung Galaxy S23 Ultra, Expert RAW 3.0.06.28

Erik Bloodaxe

Legend

I would begin by checking your Camera Raw default settings. Some settings seem to have been applied to make the image appear differently. Camera Raw cannot ruin your images so you should be able to undo any applied settings and revert to normality.

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Blake612

Participating Frequently

Thanks for replying. I'll admit I'm not sure what settings to look at: everything looks pretty "default," as far as I'm aware. I'm wondering if it's the photo itself (if I overlooked an update that "wrecked" something in my phone). I tried opening an affected file on a different computer, and it gives me that same, extremely washed-out, extremely green result. I'm including an example file (trying to, at least) in case anyone bored enough sees this and wants a challenge. Thanks for checking things out!

Hmm. This is interesting. I attached the file I pulled from my phone, clicked "Post," and received a message saying the octet stream didn't match the file extension. I don't know what that means, but now I'm wondering just exactly what kind of data are in this file! As mentioned in the OP, opening DNG files in Camera RAW used to "just work:" I'm not sure what all this octet-stream fun stuff is all about. Sigh.

flyingdogfish

Participating Frequently

DNG files from Samsung Galaxy S23 Ultra get a very strong green tint after import. At first they look normal, but after a few seconds they turn green. This bug was not present in the previous version and previously imported images are not affected. After some poking around I discover the problem appears when using lossy compressed DNG.

[moved from bugs to discussions according to the community rules - Mod.]

johnrellis

Legend

Please upload one of the problem DNGs to Dropbox, Google Drive, or similar and include the sharing links here. Without a sample file, Adobe is unlikely to pay attention.