Lightroom 6- Cut & paste of dust correction parameters to other pictures gives bad results

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  • Updated 3 years ago
  • (Edited)
Context:

Before starting a picture shooting session i take a picture of the sky to locate&correct easily dust on the sensor on final picture then once done i cut&paste the dust correction to all pictures.

Problem:

When pasting dust correction parameters to others pictures it will gives expected result most of the time when correction points are located on the sky part of the destination picture, however all other points gives totally random and terrible results (e.g. part of mountain used to replace grass or part of sky). So that in the current state it is not possible to cut&paste dust correction parameters to others pictures, the result is just terrible. Please note that if i delete a terrible pasted dust correction point and add it again manually it will give a perfect result so it is just a cut&paste process issue.

Please consider putting this issue on the top of your "to fix" list as it is a real pain having to do manually dust correction for each picture (huge waste of time).

Config:

Lightroom 6 / windows 7 64bits

Thanks for reading
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Posted 3 years ago

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Photo of Victoria Bampton - Lightroom Queen

Victoria Bampton - Lightroom Queen, Champion

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Do you have the spots set to auto source or are you manually selecting a source?
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Not sure to understand the question.

I am manually selecting all the dusts using the correction tool on a reference picture, then i copy the correction parameter of this reference picture and finally select manually a bunch of pictures to apply the dust correction setting copied from my reference picture.
Photo of Victoria Bampton - Lightroom Queen

Victoria Bampton - Lightroom Queen, Champion

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If you just click on a spot, Lightroom automatically finds a source for the pixels and that can vary when you sync the spot corrections. If you Ctrl-click on the spot, you can drag to select a manual spot source, and that's then fixed in place when you sync across multiple photos.
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Ok so i use auto source since it does a pretty good job on reference picture but unfortunately not when pasted on other pictures.

Can we get a developer acknowledging this bug and give a bug tracker number please ?
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Simon Chen, Principal Computer Scientist

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Victoria is correct. If you just clicked (or brushed) on a spot and let Lightroom automatically find the best source to fill the destination area (the spot), and you did not try to manually overriding the Lightroom computed source area by dragging to reposition it (You can however ask Lightroom to find the next best auto sourced area via the KBSC "/" while having the spot selected). Then when you copy-n-paste such "auto-sourced" spot corrections to other photos, Lightroom would find the best source areas to heal the spots within the context of the new photos.
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Well it is exactly what i did (no manual override) and it doesn't work well hence the bug report.

It is easily reproducible, so just try on a bunch of picture you will see how automatic substitution fails on some points (can't get a single picture where 100% of the points are ok after a copy-n-paste so you will reproduce this within seconds).

Thanks
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Simon Chen, Principal Computer Scientist

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There is no guarantee that "auto" always get the best possible source areas. That is one of the reason Lr allows manual override and "/" KBSC find an alternate source. There is always room to improve the "auto" behavior.
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I understand but a feature either "work" or "does't work" and in this case it just doesn't work at all.

If you say me "hey we have an awesome feature that will save you times correcting sensor dust but you will have to check each spot of each picture and maybe manually fix them afterwards", well .. heu ... where do i save time ?

So it is not that there is room for improvement, this feature just doesn't work. When i get a peace of sky replaced by snow of the mountain (blue replaced by white ???!!) at the opposite side of the picture ... i call that the worst possible source area (i accept not having the best source, but not having the worst source).

Ask you this question : "why having a dust correction cut&paste feature if you have to check all (and maybe fix) manually afterwards" it's a non-sense !

If the features exists we are legitimately expecting it to work, so please forward the bug report to developers or ask for getting this broken feature removed as it doesn't work at all.
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Simon Chen, Principal Computer Scientist

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"When i get a peace of sky replaced by snow of the mountain (blue replaced by white ???!!) at the opposite side of the picture ..."

Let me understand what you saw: Lightroom had tried to source the spot from a different area in the new photo than the original, as opposed to always source from the same location as the original. If you see the later behavior, that would be a bug.
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On the new picture, spot is at the same place but the auto source is sometimes set randomly somewhere far from the spot and from a totally different color (like if it was chosen randomly).

Again this is reproducible easily as from my testing such fail happens on each picture provided you have 10-15 point across the picture.
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On the new picture, spot is at the same place but the auto source is sometimes set randomly somewhere far from the spot and from a totally different color (like if it was chosen randomly).

Again this is reproducible easily as from my testing such fail happens on each picture provided you have 10-15 point across the picture.
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Victoria Bampton - Lightroom Queen, Champion

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Show us pictures none none - you'll get a lot more support if we can actually see a problem here.
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Actually i don't need support, i just need to report a bug and i won't give my pictures on a public forum.

Again it takes 2 minutes and a set of 10 pictures and you will see it by yourself, you have 10 pictures don't you ?
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Victoria Bampton - Lightroom Queen, Champion

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There's no need to be rude. I HAVE tried it on 10 pictures and I'm seeing the results I'd expect so there's a detail we're missing.
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I am not being rude but i am somewhat bored wasting my time here without getting a technical guy involved. I am not interested in talking for the pleasure of talking.

If a developer wants me to provide sample pictures in private that illustrate the issue i would gladly provide them as well as other technical informations.
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Victoria Bampton - Lightroom Queen, Champion

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Simon Chen IS one of the engineers. But that's fine, I'll leave him to ask you.
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Well i appreciate that you take time to deliver your sarcasm especially for me but as far as i am concerned sarcasm never solved any bug or maybe you can sit in front of a workstation and write some code ?

Thanks
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Victoria Bampton - Lightroom Queen, Champion

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none none, I'm not being sarcastic. They won't fix the bug if they can't reproduce the bug. I haven't been able to reproduce the bug with the information you've given so far, which means they're likely to have trouble too.

The engineers have a lot of responsibilities... those of us badged as champions are here to help to gather the information the engineers need to find and fix these bugs. I'm not here chatting for the fun of it, believe me. But at this point, I'm out.
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So far no technical people have been trying to reproduce the bug or asked me technical information so your point is not valid.

I can reproduce this at will so it is just a matter of a technical guy to contact me, which after 18 replies still did not happen.
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Please provide a bug reporting process where i do not have to give personal informations to a third-party.

Thanks
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Simon Chen, Principal Computer Scientist

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Please send me a private email (sichen at adobe dot com) on how to download the photos. Dropbox link is fine.

Thanks.
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You should have received the requested informations, hopefully you will be able to reproduce the bug.
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Hello Simon,

Do you have any news about the second picture collection i sent ? You can either answer here or by email if you need more material for testing.

Regards