Lightroom/Camera Raw: Terrible quality of LG G4 profile

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Trial Lightroom with my new LG G4 has vignetting and color cast issues . Is this a problem with the built-in LGG4 profile of Lightroom ?
I would have expected that the built-in profile would be of the best quality without tweaking.

Others mention the same:
http://forum.xda-developers.com/showp...
http://www.yousifalmarri.com/2015/06/...
http://www.androidpolice.com/2015/05/...
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igor jacy lino campista

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Posted 3 years ago

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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Sounds like the problem is with Lens correction - specifically with regard to color cast in their lens vignetting.

We have a plug-in for that:
http://labs.adobe.com/technologies/li...

Specifically the Adobe DNG Flat Field plug-in. Instructions:
http://labsdownload.adobe.com/pub/lab...
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igor jacy lino campista

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Thanks for pointers. Tried playing with the plug-in. Unfortunately, not satisfied.

I think such details should not be needed for the average user. I believe it should work out of the box. If I'm paying for the software, it should not need anything special to get good quality.

The lens of all smartphones have limitations, so its even more important to have proper profiles. I'm now not sure who should provide them, the vendor or lightroom. I guess the former. But if being the best RAW converter is the target, then the later could do a much better job.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Sorry, meant to follow up. It appears LG isn't aware of a DNG opcode that can correct for the flat field issue. We're getting the necessary info to LG, so hopefully they can improve the processing of their images.
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Robert Kriner

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Igor,
I'm considering getting a G4. Finding sample raw (.DNG) files has proven to be a lot harder than I thought it would be. Do you have any you could share? I'd like to try them in LR to see what the issue are first hand.
Thanks.
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Steve Sprengel, Champion

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There is one DNG image in the Full Resolution section of this G4 review. It has sky across the top so would be a good test of the vignetting correction:
http://www.colbybrownphotography.com/...

Three more DNGs are here:
https://www.dropbox.com/sh/8m2gigk98g...

There is one DNG here, linked just above the owl:
http://www.gsmarena.com/lg_g4_preview...
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Robert Kriner

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Thanks for the prompt response Steve. I had already found the first and last one linked above. Those are the only 2 I had after searching yesterday.

The middle link needs a Drop Box account, so I'll pass on that one (way too many accounts, usernames and passwords already, way too much spam already, way too many data breaches already, way too many terms and conditions already :) ).

If anyone else knows of any others that can just be downloaded, please let me know. (I'm thinking LG should post some--might help them sell a few more units.)

Thanks again Steve.
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Steve Sprengel, Champion

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Unless they have their own website storage space, anyone going to share DNGs is going to have to use some sort of large-file-hosting service, like dropbox or box.com.

The dropbox.com downloads do actually work if you try them more than once without being signed in or that's my experience, anyway. Sometimes it takes several tries. I think they ask you to sign in the first time to see if you will, but eventually give up.
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Robert Kriner

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Thanks very much Steve (again). I gave it a go and you were right! I was able to download 3 more .DNG files to play around with. These are very helpful--just what I was looking for.

I'll try again in a few weeks in the hope that some with ISO above 800 can be found (just to see how things look there before and after denoising).

And just to be sure I've made my point....thanks a ton Steve! The links (and your persistence) were greatly appreciated.
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Steve Sprengel, Champion

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The only thing that saves this camera in raw mode is that it's 16MP, because the noise is pretty bad. It's tiny sensor is doing the best it can.

For example that ISO 50 rock formation against the sky has bad noise in the medium shadows, already, requiring quite high settings for color NR:


Those black and white vases at ISO 800 in the last link have noise that cannot be removed by maxing out the color NR controls in ACR/LR:


As far as seeing higher ISO images to compare, my 16MP Galaxy S6 camera only goes up to ISO 1000 in Auto mode taking photos of something dark like the night sky and ISO 800 is the highest you can set in manual mode. I doubt you'll see much higher than what these samples show and ISO 800 is already too much for Adobe processing to handle.
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igor jacy lino campista

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Hi Robert,

If the profile support gets worked in lightroom is already a good portable camera. As Steven mentioned, anything above ISO 800 don't expect much.

For myself, I own/use a Nikon 7200 ( + several lens) for serious/best photos.
The LG4 is purely for casual things. It serves well its purpose, and developing the RAW of it feels not yet complete.

If I had to buy a phone once again. I would choose LG G4 once again. The camera is really good, and DO want to have a battery and SD card replacement from time to time.
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Steve Sprengel, Champion

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As Jeff said a few weeks ago, the issue with lens corrections or lack thereof is that the DNGs need to have this information embedded in them by the camera, and the camera manufacturer did not know about doing this. If the LG G4 firmware or camera software ever embeds the correct lens-correction data then Adobe products will use it to correct distortion.
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oscar martínez díaz

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I just bought my LG G4 and im really dissapointed whith the vignetting and colour in raw/dng. It's already along time the movil is out and the software is still the same. Hopefully soon will see a correction for this isue.
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Irish Mafia

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Has anyone tried Cornerfix? It's shareware, I have yet to try it because I'm waiting for G4's big brother V10..... they claim it does a good job on the G4 raw photos.... Not to be rude, but this approach seems solid. How is it Adobe doesn't have the resources to implement this type of approach? Or a custom correction for a G4 / V10? See forum.xda-developers.com/show.post.php?p=61360315

Of course the right answer is for LG to fix their firmware, any of these approaches makes shooting raw on a phone close to undesirable... I think i'll try perfecting my manual control skills 1st. Get on it LG, please!
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datdaddy

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Does anyone know if this has been fixed yet?
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Steve Sprengel, Champion

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What issues are you asking about?  Adobe software is using whatever color profile and lens corrections that are embedded in the DNG from the camera. 

If you have an example DNG you'd like to show as an example of an issue, please upload it to www.dropbox.com and post a public share link in a message, here. 

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Steve Sprengel, Champion

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Also there is an update in this article dated 2/24/2016 that says the issue was fixed with the Marshmallow update.  It doesn't say what specific issue is being talked about and goes on to describe Cornerfix so since I don't have an LG to test with someone else will have to post DNGs from an updated phone to see what might have been fixed with Marshmallow: 

http://forum.xda-developers.com/showpost.php?p=61360315&postcount=314

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datdaddy

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Thanks, Steve.  This is what I was looking for:  [UPDATE: 24/02/2016 - The issue is fixed with the Marshmallow software update!]