DeNoise works on Samsung S22 DNGs, but not on Samsung S23 DNGs

[dj_paige]

Lightroom Classic 12.3

Windows 11

NVidia GeForce GTX 1650 (driver version 531.61) (Also doesn't work with driver 528.49)

I have a number of DNGs shot on my Samsung Galaxy S23, and others DNGs shot on my Samsung Galaxy S22. The DeNoise feature works on the S22 DNGs, but I can't use it on the S23 DNGs as the DeNoise button never becomes active. I am thinking there may be a camera setting that may influence this, or somehow this is a bug in Adobe DeNoise, or somehow Samsung has changed their DNGs with the S23. I don't really have a clue how to figure this out. Any explanation or suggestions?

DeNoise works properly on NEF files from my Nikon cameras

I have placed two sample DNGs on Dropbox.

S22: https://www.dropbox.com/s/1uxg6d93if5gav0/S22_20220705_184931%20%281%29.dng?dl=0

S23: https://www.dropbox.com/s/a5rcdt13jz8s4gv/S23_0230423_174343.dng?dl=0

[TheDigitalDog]

Yes, I can confirm the S23 can't be processed. 

This DNG came from the camera directly right? 

Since it is a DNG that can be opened in Adobe Camera Raw/LR, my first guess is it wasn't properly following DNG spec. But we need an Adobe engineer to download it and look it over. 

I'm on a Mac FWIW. 

[dj_paige]

Thanks, @TheDigitalDog 

Yes, straight from the camera.

[TheDigitalDog]

I wonder if a DNG can be converted again to DNG? The standalone didn't accept it but maybe LR can? I didn't try and trashed it, maybe you can?

[johnrellis · Accepted solution]

Did you take that sample with Samsung's Expert Raw app or LR Mobile's camera?  

I can't download your samples (they've been deleted), but this Samsung article says that Expert Raw app saves "raw" photos in linear DNG format (i.e. demosaiced):

https://www.samsung.com/latin_en/support/mobile-devices/professional-photography-with-galaxy-expert-...

Denoise can't handle linear-DNG photos (but maybe well in the future).

You can easily see if your DNGs are linear: In Library, select a DNG and look at the Metadata > DNG panel's Mosaic Data field:

If Mosaic Data is No, then the DNG is linear. 

I assume that LR Mobile's camera saves raw DNGs (with mosaic data), as it does on iPhones, but I don't know for sure.

[dj_paige]

Thanks, John that's good information. I deleted the files as I don't have a lot of free space left on my Dropbox (free) account, I can put them back if anyone is interested. When I first got the camera, I took detailed notes about which photos were "regular raw" and which are "Expert Raw", to see if I could detect a quality difference between the two. Looking back they BOTH indicate Mosaic Data=NO. So I guess that settles the matter now. I just now tried to take photos with the Lr mobile app, and the DNGs are mosaiced (not linear) and Denoise works, so from now on I guess I will use the Lr mobile app if I am taking high ISO photos.