Please be careful. Again, the development has been, and continues to be, active. Only the release cycle got longer due to temporary issues. The project itself never “stalled”.
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What do these curve mean to what I see?
Steep part: high contrast; flat part: low contrast.
as an illustration to @Lawrence37 's comment relevant to the topic of this thread @micha , check out the enhancements to the Tone Response Curve in Local Adjustments (which can be used globally) currently being developed by @jdc Another tutorial – Color appearance – Truck under a tunnel - #4 by jdc As Jacques points out, this tool provides an interesting and simple alternative to:
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Thank you for this tip. Don’t worry, I always have an eye on RT and I certainly won’t forget my old love.
It would be a dream come true if ART and RT could find each other again, i.e. the best of both worlds pulling in the same direction. Unfortunately, that will probably never happen, but we have to be content with that, everyone can go the way they recognize as their own. Even the software developers.
A huge contribution. I have copied it into a text document, will translate it into German and work through it until I understand everything. That may take a while.
It looks very challenging, interesting but also important.
But thank you very much for your efforts.
Hello Wayne,
Thanks for the tip. You make me curious and I will seriously try this branch, I am very curious to see how well I get along with this software.
But I’m sure I won’t make much progress without help. But I will ask if I need to know anything. If necessary, Jacques himself, with whom I am also in contact.
For a good introduction to the basic TRC, see this video by @Andy_Astbury1 starting at 13:40 minutes. https://www.youtube.com/watch?v=-30NwsK5TuY&list=PLnIcpm2W3TX_kcxfxeZdfW6R_4FYh-KjS&index=17
Note that the video doesn’t cover the more advanced TRC in the lacam16 development branch mentioned above.
Thank you for your efforts, but I’m starting to find everything far too complicated again. The possibilities are great and I admire them, but hopefully I will never need them.
But I will look at it all with patience and perseverance, even if it’s all too much for me at the moment.
Your suggestion to take a closer look at this topic appeals to me, but we should definitely open a new topic and not continue writing here.
But before I get fully and intensively involved, I would like to hear from you: What can this TCR do?
I’m not that interested in learning something new just because it’s new, but it’s really just another method. In the end, does TCR offer more and better possibilities for raw development than ART?
Then you could start a new topic, with a suitable example photo - and I will be enthusiastic about it.
Just take a look at Jacques’ tutorial in the link on my message above.
Hello @Wayne_Sutton
Yes, yes, I’ve looked at it a lot, but it’s not that easy for me to get started.
Please, can you tell me what this miracle tool can do that others, especially ART, can’t?
That is important to me.
@micha, to be clear I’m not advocating this tool over and above any of the others. Each has its merits and uses depending on the type of image. My only reason for mentioning it was in response to your remark about RawTherapee development being stalled and the lengthy discussion about Log Encoding and Sigmoid that preceded it. The TRC is just one more tool that tries to address the problem of processing high dynamic range images.
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Hello Wayne,
Thank you for the clear and understandable answer to my question.
Finally, I have to say that I find it much easier to achieve better results with log tone mapping. Here is the .arp file so that anyone who wants to can try it out for themselves.
M1_Log Tone Mapping.dng.arp (12.0 KB)
I’m not saying that Sigmoid is any less good, just that despite comments to the contrary on the net, I simply get on better with Log Tone Mapping. Mainly because the highlights are not so terribly soft.
But it’s a matter of opinion. It could also be that I would develop my image differently in a few weeks or months.
As things stand today: LTM is my favorite!
edit: If I increase the Skew slider in Sigmoid, I can create wonderful contrasts in the highlights. I’m currently editing an image where Sigmoid is better than with Log Tone Mapping.
I’m discovering more and more.
Which prooves what I said the other day: don’t be afraid to try different modules, and even different combinations of modules, and trust your eyes. The important is to get a result that pleases you.
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