LR BUG? More noise in LR than in Photoshop when loading JPG

Nov 12, 2018

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Hi all!

When loading JPEG in lightroom, I can see noise shaped like short horizontal segments of lines.

This does not appear in other images viewer such photoshop or GIMP. Is it a Lightroom BUG ?

how to avoid this bad looking noise ?

Here is the comparison, I increased the contrast so you can see it easily:

Left: Lightroom (Classic CC Version 1.4, Camera Raw 10.4), top right: photoshop.

more_contrast.png

GIMP behave like photoshop.

Here is the original picture:

original_cropped.jpg

Thanks for your help.

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Adobe Community Professional ,
Nov 12, 2018

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Does this happen with all JPGs?

Does it happen if the GPU (Graphics Processor) is turned off or on, whatever is different than now?

Can you provide a link to the original JPG on somewhere like dropbox or googledrive or onedrive and let us see if the same happens for us?

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Nov 12, 2018

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It happens on LR develop, on all JPG, with or without GPU, same kind of noise

Here is the image:

https://drive.google.com/file/d/1YFW5jr0rHjdCynY6aOWk4BuAK8gufHfv/view?usp=sharing

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Adobe Community Professional ,
Nov 14, 2018

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That link is private, for you only, not public, for everyone, or access to that image needs changed to public, at least temporarily.

Here is what I see logged in as me when I click on it, and I'm not going to request permission:

2018-11-14_081814.png

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Nov 12, 2018

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In your catalog settngs, what do you have previes set for? Size and quality.

mid 2015 MBPr 15” 16GB MACOS 10.15.3; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3>Just another Adobe customer; My Sys; APP: LRC 9.2.1, PS 21.1.3; CMP: WIN WS 16GB OS 10.0.18363,
mid 2015 MBPr 15” 16GB MACOS 10.15.3; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3

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Adobe Community Professional ,
Nov 14, 2018

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This is in Develop which doesn't use previews, right?

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Nov 14, 2018

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Here is the link with read access: photo-47299817-001-002-003-reworked(1).jpg - Google Drive

I'm viewing it in Develop yes !

Thanks a lot for your help

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Nov 14, 2018

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Develop uses previews, every image you see in LR is a preview.

One followup, the Library module and the Develop module use different color space, Library uses one as to allow that module to function quicker, Develop uses a more robust one as to have more accurate colors. Always view the image in Develop when you are inspecting them for quality.

In certain situations, images with lots of noise is one, heavy nasty contrast another, the Library module can look so different from the Develop module , you would think something is broken. (learned that yesterday)

mid 2015 MBPr 15” 16GB MACOS 10.15.3; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3>Just another Adobe customer; My Sys; APP: LRC 9.2.1, PS 21.1.3; CMP: WIN WS 16GB OS 10.0.18363,
mid 2015 MBPr 15” 16GB MACOS 10.15.3; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3

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Adobe Community Professional ,
Nov 14, 2018

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Quote "Develop uses previews, every image you see in LR is a preview."

Just so you are aware when you access image files in the Develop Module, Lightroom renders the original imported file and applies any develop or other edits you have applied to the image and displays the results on your screen utilising a variant of Pro Photo RGB working color space. This is the default and there is no option to change this option. Every change you make in the develop module Lightroom will re render the original file and the display will change. If the original file is not available you will have to have built Smart Previews to work in the Develop Module.

When you work in the Library and other Modules Lightroom will work with the Lightroom previews built at import and adjusted when you make adjustments in the Develop Module. The Preview files are in AdobeRGB color space. Again there is no to change the color working space. This is why you may see a slight differences on your monitor even if it is profiled and calibrated. Working with the previews allows the Library Module to move from image to image more quickly than when you are in the develop module.

Regards, Denis: System iMac mid-2015, 5K 27” monitor, macOS10.15.4: Lightroom Classic 9.2.1, Lightroom (cloud-based) 3.2.1, Photoshop, Camera OM-D E-M1.

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Adobe Community Professional ,
Nov 14, 2018

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I see the same thing with the JPG you shared:

In LR 8.0 and PS 20 / ACR 11.0 plug-in the banding occurs.

In PS 20 / ACR 11.0 *filter* there is no banding.

2018-11-14_225639.png

The JPG didn't appear to have any embedded Camera Raw settings.  I mostly added Dehaze +100 to make the banding more visible but also removed most of the red/green chromatic aberration that was a bit distracting. but the CA removal didn't affect the banding.

Can you upload the original raw to the same Google drive and share it?  Or maybe a DNG with the settings embedded?

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Nov 14, 2018

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Try your sample again, this time comparison (Lightroom) in Develop Module (sure looks like your were in Library Module)

mid 2015 MBPr 15” 16GB MACOS 10.15.3; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3>Just another Adobe customer; My Sys; APP: LRC 9.2.1, PS 21.1.3; CMP: WIN WS 16GB OS 10.0.18363,
mid 2015 MBPr 15” 16GB MACOS 10.15.3; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3

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Adobe Community Professional ,
Nov 14, 2018

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matthieug84604588  wrote

Here is the comparison, I increased the contrast so you can see it easily:

The JPEG you uploaded has very low contrast, exposure, and sharpness. This requires increasing the exposure, contrast, and sharpening inside LR, which reveals sensor noise and JPEG compression artifacts. You can work around this issue by using LR's Basic and Detail panel controls as shown below.

A better solution is to adjust the camera's settings to obtain an image file with normal exposure, contrast, and sharpness.

photo-47299817-001-002-003-reworked(1)_Edits.jpg

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Nov 14, 2018

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Exactly the sort of image that can look different in Library as opposed to Develop.

mid 2015 MBPr 15” 16GB MACOS 10.15.3; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3>Just another Adobe customer; My Sys; APP: LRC 9.2.1, PS 21.1.3; CMP: WIN WS 16GB OS 10.0.18363,
mid 2015 MBPr 15” 16GB MACOS 10.15.3; 4K EXT DSPY; CAM: Canon 5D Mk III, Fuji X-T3

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Adobe Community Professional ,
Nov 14, 2018

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The interface in your screenshot looks incredibly strange. Extremely high contrast also in the interface elements like the menu bar and the buttons. Do you have a mode turned on such as increased display contrast? This is done in the system preferences on your mac in Accessibility->Display. You should not have anything enabled and the display contrast should be set to normal. It looks as if you have it dialed up. This will mess with the image display in Lightroom otherwise.

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Adobe Community Professional ,
Nov 14, 2018

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Sorry you wrote that you increased the contrast on the screenshot. I checked your file and you are right if you dial in an extreme tone curve on it it will show stripes. Doing the same thing in Photoshop does not show the stripyness. This looks like a weird bug to me. Nothing to do with the GPU. No clue what causes it. Please report at https://feedback.photoshop.com

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Adobe Community Professional ,
Nov 14, 2018

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https://forums.adobe.com/people/Jao+vdL  wrote

I checked your file and you are right if you dial in an extreme tone curve on it it will show stripes.

Jao I'm not seeing that on my Windows 7 system.

Contrast Curve.jpg

I also need to add sharpening and a high Dehaze setting to reveal any pattern artfacts, which look like sensor noise and JPEG compression artifacts.

Contrast Curve2.jpg

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Adobe Community Professional ,
Nov 14, 2018

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I’ll show a screenshot later when I am at my computer. You need to dial in

an almost vertical tone curve adjustment in the higher range of the image

and you get al kinds of striped artifacts that don’t happen with the same

curves in photoshop. They’re invisible without the extreme curve so it

seems this is related to how Lightroom is reading the jpeg file somehow.

I’ve never seen anything like this in my own files.

On Wed, Nov 14, 2018 at 5:45 PM Todd Shaner <forums_noreply@adobe.com>

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Adobe Community Professional ,
Nov 14, 2018

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Just Dehaze + 100 is enough to show the stripes.  No need for tone curve and sharpening.

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