P: X-T2 Fuji Files have small purple artifact at edge of image after Denoise

[.Michael.]

Hint: Originally I posted at the wrong forum part (Camera Raw) and therefore my post got lost (I think).

The symptoms are purple lines on the AI improved DNG files in lets say each 10th processed *.dng file. In the link at the end of this text you will find 3 files:

1. _DSF2201.dng
2. _DSF2201-Enhanced-NR.dng and
3. LrC_12.4_2023-06-15.png

1. is a *.raf file which got converted to *.dng. (I do this with all my Fujifilm RAW files.)

2. is the AI enhanced / processed file with purple line at the top edge as well as the right edge. Default settings used at enhancement.

3. is my LrC system information.

LrC is running on Win 10 V22H2, on two (very) different machines. Both show the same purple line artifacts.

The fix made at LrC 12.4 may help for the original provided X-H1 *.raf files (from user Japhotofin) but not for my files. Can someone confirm my finding? Thank you!

AI Noise reduction bug, Fujifilm X-T2 

[John R Ellis]

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@Rikk Flohr: Photography, please consider moving to Bugs. Using the sample file provided, I see the same purple borders on the enhanced DNG (LR 12.4 / Mac OS 13.4):

[Rikk Flohr: Photography]

Adding bug number 

[.Michael.]

@Rikk Flohr: Photography  1) Why is my post now at "Camera Raw" instead of  "Lightroom Classic"? The AI denoise tool is a part of LrC, isn't it?

2) You have changed my title "AI Noise reduction for Fujifilm DNG files produces purple lines also in LrC 12.4 (June 2023)" which was aligned with the title of the source post P: AI Noise reduction for Fuji X-H1 files produces purple lines on edges . Your new title hides the relation and implies that it is only an X-T2 bug. I expect that all Fujifilm X-Trans RAW files are problematic for the AI denoise, i.e. not only X-H1 and X-T2. (I will try to proof this if I have time in the next days.)

[Rikk Flohr: Photography]

The failure is in the Camera Raw engine and fails across all clients ACR/LrD and LrC. It belongs in Camera Raw as they have to fix it for all the clients.

[.Michael.]

From my previous post: 

"I expect that all Fujifilm X-Trans RAW files are problematic for the AI denoise, i.e. not only X-H1 and X-T2. (I will try to proof this if I have time in the next days.)"

This is already proofed in the source post! There are the following camera models mentioned X-Pro 2, X-PRO 3, X100F and may be some more. I have not read the entire source thread.

[Rikk Flohr: Photography]

"I have not read the entire source thread."

Please read the entire source post. It was fixed in 15.3.1 in Camera Raw and in 6.4 and 12.4 in Lightroom Desktop and Classic respectively. 

The fix was confirmed on 5.19 by an afflicted customer. 

If you find that other cameras are affected, the title can be changed. 

[.Michael.]

"It was fixed in 15.3.1 in Camera Raw ..."

Yes but it was fixed only for the X-H1 camera model but this is only one out of n models which often have different X-Trans Sensors. In the source thread there are several users which reported the same bug but on different cameras with different sensors (I already mentioned 3 of them). I guess that Adobe AI denoise needs a fix for each of the X-Trans sensors. By the way my camera model X-T2 is also there and as you now know the problem is not fixed.

I will try to get some light into the shade and asking therefore the prevoius discussion attendees:

@kernpanik is your X-T2 problem gone and happened it with RAF raw source files?

@saintleger is your X-Pro 2 problem gone and happened it with RAF raw source files?

@Debruineogenboy is your X100F problem gone and happened it with RAF raw source files?

@SoylentYellow is your X100F problem gone and happened it with RAF raw source files?

@Ory217759190xsq is your X-T20 problem gone and happened it with RAF raw source files?

@martat14582229 is your X-Pro 3 problem gone and happened it with RAF raw source files?

If all of them are happy now it would mean that not the X-Trans sensor is the culprit but may be my *.raf to *.dng conversion at photo import to LrC. Hopefully at least some will answer my question...

[kernpanik]

@kernpanik is your X-T2 problem gone?

Yes, it's fixed for me. 

[.Michael.]

@John R Ellis Thanks a lot for your test of my reported problem.

[.Michael.]

@kernpanik Do you use RAF or DNG raw files?

[kernpanik]

@kernpanik Do you use RAF or DNG raw files?

I use RAF files.

A conversion to DNG takes place at the end of the AI denoise process, when the de-noised image is saved as a new DNG file.

[.Michael.]

I use RAF files.

Thank you kernpanik. This points to my source file type suspicion. I cannot proof it, I do not keep the original *.raf files.

[Ory217759190xsq]

@.Michael. 

Hi Michael, tested 2 photos, seems that the problem is gone...thanks for taking care for it.

Ory

[SoylentYellow]

Yes it is! Than ks for the fix.

[SoylentYellow]

@SoylentYellow is your X100F problem gone and happened it with RAF raw source files?

Yes and Yes. Conversion works great now, and I was indeed working from the RAF file, I do not convert to DNG.

[.Michael.]

Thank you Ory217759190xsq and SoylentYellow for your answers. 

Now with the 2nd reply which is telling not using DNG files the chance is again increased that the AI Noise reduction is only for Fujifilm DNG files not working (but for the original RAF files it is since LrC V12.4 OK).

[saintleger]

Hi @.Michael. 
All good for me. Seems to be fixed!

[.Michael.]

LrC 12.5: After more than 2 months no fix provided 😞 but for Sony ILCE-7R there was a fix (link).

[.Michael.]

LrC 13.01: After approx. 5 months again no fix provided 😞

P.S. The now produced file size is 26.834 kBytes vs. before 67.915 kBytes. The new introduced JEPG XL compression works well.

[ahmadoooo]

Hi all, yesterday I updated LrC and Camera raw and then used the denoise tool and it generated purple two purple lines one at the very edge and one few pixels away. I use Canon R8 generating CR3 raw files and the result from denoise is DNG file. The issue is not totally resolved

[.Michael.]

@ahmadoooo As Adobe seems to release camera specific bug fixes I recommend you release a Canon specific bug report.

[.Michael.]

LrC 13.1: Since June 2023 (i.e. LrC 12.4) no fix provided!

[.Michael.]

@Calicaruso Thanks for your upvotes, I guess you know that the initial post of a thread needs it most, i.e. only this makes it (the problem) better visible to those who take care of it.

[ahmadoooo]

Thank you. I will look into it

[.Michael.]

LrC 13.2: Since June 2023 (i.e. LrC 12.4) no fix provided!