Invert Curve?

[Robert Lutz]

Hi Andrey,

Is there any facility for inverting the curve in RPP? I frequently scan analog photos using a DSLR and right now I can only use RPP for slides and need to use ACR/LR for processing all negatives because they allow me to invert the curve during raw conversion. I would love to use RPP on negatives as well because the precise control over white balance is so helpful with getting the scanned images to look as close as possible to the original.

If this is not possible in RPP, would you consider adding an inverted curve option in the future?

Thanks,

Robert

[RPP]

Robert,

RPP doesn't have such option and is not well-suited for this kind of processing.

Regards,

Andrey

[Robert Lutz]

Hi Andrey,

Oh ok, thanks for your reply!

Best,

Robert

[Iliah Borg]

Dear Robert,

Making a profile for RPP based on an a shot of a colour target (I mean a scan of it, of course) results in usable inversion.

On Dec 23, 2016, at 6:43 AM, Robert Lutz wrote:

> Hi Andrey,
> Oh ok, thanks for your reply!
>
> Best,
> Robert
>
> On Wednesday, December 21, 2016 at 5:51:10 AM UTC+1, RPP wrote:
> Robert,
>
> RPP doesn't have such option and is not well-suited for this kind of processing.
>
> Regards,
> Andrey
>
> On Sunday, December 18, 2016 at 6:04:04 AM UTC-8, Robert Lutz wrote:
> Hi Andrey,
> Is there any facility for inverting the curve in RPP? I frequently scan analog photos using a DSLR and right now I can only use RPP for slides and need to use ACR/LR for processing all negatives because they allow me to invert the curve during raw conversion. I would love to use RPP on negatives as well because the precise control over white balance is so helpful with getting the scanned images to look as close as possible to the original.
>
> If this is not possible in RPP, would you consider adding an inverted curve option in the future?
>
> Thanks,
> Robert
>

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Best regards,
Iliah Borg
LibRaw, LLC
www.libraw.org
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www.fastrawviewer.com

[Tungee]

I want to second that request. It tried to start to convert MF analog film convert and such a feature is very welcome. To stay as long in Raw is a must!

Bets Regards

[Artur Charaev]

Hi Andrey, thank you for RPP, enjoying using it.

I understand that image processing is tough and there is always something regular user don't know. So could you add some info why it's not well suited?
From user perspective it would be EXTREMELY useful feature: camera scanned workflow becomes more and more popular at the same time most of us had to use lightroom with negative lab pro and it means adobe subscription. So if only RPP had something like "invert profile" or something like that it would be very useful.

Alternatively maybe you can suggest some workflow to process digital scanned negative with RPP at some step?

Thank you.

среда, 21 декабря 2016 г. в 07:51:10 UTC+3, RPP:

[iliah....@gmail.com]

On 2/3/24 10:48, Artur Charaev wrote:

> camera scanned workflow becomes more and more popular

Doesn't mean such a workflow is good enough to support it.

[Artur Charaev]

It could be so, I can't argue with you about quality (don't have that much expertise), but there is number of other arguments from user perspective:
- result might be not perfect, but I guess with RPP expertise it will be far better than process it with consumer scanner or even better than some labs do.
- good scanner costs lot of money, most people can't afford it for a film hobby.

- consumer scanners like mine Epson V600 will be beaten with almost any modern camera.

- scanners market almost dead and there is less and less options.

- it could attract number of users and film community will be happy to see new option.

- film price climbs up and if we add lab scan price it becomes too expensive, this feature could help to save film folks.

Thank you.

суббота, 3 февраля 2024 г. в 19:09:36 UTC+3, iliah....@gmail.com:

[iliah....@gmail.com]

On 2/3/24 11:38, Artur Charaev wrote:
> It could be so

It is so.

[Artur Charaev]

I'm not talking against your point, can you take a little step back and a look on other arguments? I feel you missed my point.

And don't want to be annoying, I only ask you to look on this feature from different angle, it could be very useful for so many people because of number of reasons. And yes, it's not your workflow, this feature is not for you, I do understand RPP was made for personal usage and it is your personal time to develop and therefore regardless to your answer I can only thank you, RPP is the first software I was happy to donate before it asked. Personally, I'll be happy to donate yet again if it will be there, it could fix pain for me.

offtopic: I didn't received unlock code for reavera...@gmail.com if you can help?

суббота, 3 февраля 2024 г. в 19:54:32 UTC+3, iliah....@gmail.com:

[RPP]

Artur,

Inversion of negatives belongs to post-processing and such operations are outside of RPP's scope. 

We stopped adding features like this long ago because quick solutions don't satisfy anyone and they only clutter product which is already cluttered enough. 

We have no intention of turning RPP into next Photoshop - this planet may not survive another one.

Regarding your unlock code - it was emailed on Jan. 27 and is probably in your junk folder. I've re-send it again just in case.

Regards,

Andrey

[iliah....@gmail.com]

On 2/3/24 12:39, Artur Charaev wrote:
> I'm not talking against your point

It's not _my_ point. It's physics, optics, and colour technology.

Vuescan can take raw files and process them applying mask neutralisatinos, inversions, colour transformations, etc. Why
it isn't good enough?

[Jose de Los Angeles]

Arthur, my 2¢... RAW processing and scanning / digitizing are two very
different "arts" and trying to make RPP into a negative inverter would
probably result in a not so good inverter.

I scan 35mm with a PrimeFilm XA and 120 with a Epson v700. I scan "RAW"
tiff files using Vuescan. For inversion I use either the ColorPerfect
plugin with PhotoLine (also available for Photoshop) or a custom bulk
action with the free to use XnView MP. I am actually pleased with the
results I get with XnView. If you are interested in my workflow you can
email me direct and I'd be happy to share the action I apply.

Jose

[iliah....@gmail.com]

On 2/3/24 13:48, Jose de Los Angeles wrote:

> trying to make RPP into a negative inverter would probably result in a not so good inverter.

Before anything, trying to make an ordinary camera into a film scanner would probably result in a not so good film
scanner :)

[Artur Charaev]

> Regarding your unlock code
Received, thank you for assistance!

>  Inversion of negatives belongs to

Very appreciate your explanation, it seems as very nice to have feature that could address so many pain. But got it, from user perspective it feels as something like "invert colors and apply curve", unfortunately technically it's different stage of processing and in software development it always not as simple as it sounds and results could be not as good as we would like to expect..

> Vuescan can take raw files and process them 

Will look into, that's was another part of my initial question if there is alternative workflow suggestion, cheers.

> Arthur, my 2¢
Good to know, never heard of this software.

Sorry for noise, at least I guess it might be useful for somebody in future to read this tread.

суббота, 3 февраля 2024 г. в 21:49:02 UTC+3, 120p...@gmail.com:

[Kirk Thibault]

One nice thing about RPP and ColorPerfect is that RPP can output raw 16bit linear files with UniWB, which is what ColorPerfect requires. So you can batch process your folder of negative scans into the form ColorPerfect requires and then run them through CP in PS.

Kirk

[alexey.da...@gmail.com]

Re: using camera scanned negatives - have a look at Negative Lab Pro Lightroom plugin (https://www.negativelabpro.com/), that works wonders for me. There is just too much specifics of native camera profiling and negative colour corrections needed to make a just a raw coverter like RPP to handle.

Alexey