Red flower monster

Lovely nuances.

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First of all, thank you for sharing. This one was a challenging one, nature surely isn’t in gamut :sweat_smile:
Did my best using filmic and several exposure modules.

Edit: I made this using DT 3.5


DSC_0134.NEF.xmp (11.4 KB)

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To show what structure is there, here a b&w edit for comparison.


DSC_0134.NEF.xmp (7.7 KB)

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ART

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Great to see all the different renditions!

Yes your screen shot shows it perfectly, difficult when the whole focal point is out of gamut. For online display one is faced with a choice: Preserve texture and gradients at the expense of colour, or preserve colour at the expense of texture and gradients. Maybe in another decade wide gamut monitors will be common place, and everyone will be able to appreciate both! The richness of colour and hue in your rendition is pretty much perfect.

Both rawtherapee users did an excellent taming. Very nice gradients. Looking forward to seeing the pp3’s, though don’t have dev version.

Very nice! Like the crop too.

Had to image search. Love that style!

Yes, perhaps I needed more exposure reduction in my version. Felt strange to do, given normal processing in dt is to increase, but increasing caused the reds to go white. There is always an exception to the standard…

Interested why you opted for several exposure modules instead of tone equaliser? [note: haven’t checked xmp yet, which may reveal the answer].

Yes there is a lot there. B&W brings it out nicely.

Again, thanks all for the renditions. Time to dive into the sidecars.

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With Filmulator (this is its specialty):

  • Exposure Compensation -1 1/3
  • Drama 72
  • White Clipping Point 0.7

All the data is there; the raw histogram is perfectly exposed:

Screenshot_20210318_081016

Some of it may be technically out of gamut but as long as it looks good with no harsh transitions…

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Yes, this one was pretty tough. I had lots of trouble with the color calibration.

dt 3.4.1

DSC_0134.NEF.xmp (8.4 KB)

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I did not use any modules that are exclusive to the development version.

Just loaded my edit in the latest stable and only if you actually use the colour picker will you notice that there is a very tiny difference in the way the colours are rendered. So you should be good to go.

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I used several exposure modules just because i wanted broader changes in luminosity across the image, balancing the left and right side a bit, and still keep the main flower well lit.

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red can shine brightly or darkly…

my attempt

color calibration does a good job here

Red flower monster_DSC_0134.NEF.xmp (12.0 KB)

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Thanks for posting
dt 3.4.1

DSC_0134_04.NEF.xmp (8.9 KB)

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Wysyłanie: DSC_0134-SNS-HDR_Default-GIMP-LAB.jpg
With the help of GIMP and LAB if you are interested you can conjure up a different color of flowers
Quick try

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Wysyłanie: DSC_0134-GIMP-darktable-Mantiuk.jpg
GIMP Raw darktable edition, further Mantiuk 2006, LCh Brightness Mode

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Well, that was interesting…

I found the linear RGB to almost be good enough, all I really wanted from there would have been a very small curve to pull down the shadows a bit, and I demonstrated that to my satisfaction with both parametric filmic and plain-ole control point curves.

Buuuutttt… There are definitely posterized-out extremes of the red in the folds of the subject flower, near the petal convergence, so I set out to improve that. To do so, I downloaded the DPReview studio scene comparison image for the Nikon D3300 and used it to make a LUT profile of the Colorchecker target shot using dcamprof’s gamut compression, srgb mode. Using that profile, here’s what I get:

There’s a bit of hue-shift, but it definitely put definition back in those extreme reds of the sRGB render. Don’t normally do this, but I posted this one full-sized for gamut-peeping…

Here’s the profile I made:
nikon_d3300_matrix-dcamprof-lut-gamutcompressed.icc (212.5 KB)

Edit: Upon re-regarding my effort in rawproc, I saw I hadn’t saved my most recent edits, so I saved the image and reposted it…

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@Soupy This is a nice addition to the Play Raw. Thanks for sharing!

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Hard one for sure, managing the colors was really difficult (had to use the channel mixer to pull this one out) filmic did a brilliant job but I could not keep the result entirely gamut limit safe …
Took some artistic choices with the tone equalizer.

DSC_0134.NEF.xmp (18.7 KB)

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Despite the fact your version doesn’t try to showcase textures (at least not for srgb display), you have managed to avoid weird/ugly blobs and fringing, and the colours are right on. Funnily enough, the textures IRL are quite subtle, and unless looking closely you might not notice them, so this version as displayed is pretty close to a first impression of the scene. Can’t wait to try Filmulator when I go Linux - just three sliders for a nice result!

Fear I may have lead you astray by saying, “IRL the flowers were all red, no white.” This was referring to the petal, not the pistil or stamen. I mentioned it as increasing exposure could quickly turn the reds white. However, it was quite the feat for you to get it all red!

It was nice to have a look in there. Interesting use of raw white points, I usually just leave that at default. Am wondering why you chose to reduce brightness with that instead of exposure?

Yes I see now, directional light with shape masks. Makes sense.

I love this rendition. Unfortunately when I load your xmp into darktable I get the following result.

Is the xmp correct? Or are you using a different version of darktable? I use 3.4.1. It seems to be color calibration module causing the biggest difference.

Thought this would be right up your alley, and you have not disappointed with profile trickery! This version does indeed have very nice gradients and I appreciate the full size for pixel peeping. Thanks also for providing the profile, I have a number of similar photos so it will likely prove quite useful. Am I right the profile gamut compression is from dpreview’s Nikon D3300 down to sRGB? Thus, the working profile chosen should also be (linear) sRGB? I guess in rawproc you work in input profile, and don’t have to consider working profile.

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Some of the texture went away because I shrank the image to 1500 pixels wide for the forum, plus chroma subsampling and JPEG compression. It’s definitely visible, though subtle, in the full size.

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Ah yes I see it better there, and as I said, the texture is subtle, so your rendition is quite true to life. Great job!

I would definitely use this as a “special-case tool”, as it crushes down to sRGB wherever you do the first transform out of camera space. In rawproc I currently don’t use a working profile, so my first color transform is at display/output.

A bit more generally useful version might be one of the adobergb modes; here’s a version that uses -g adobergb-strong, which is the mode Anders recommends as a starting point:

nikon_d3300_matrix-dcamprof-lut-gamutcompressed-adobergbstrong.icc (212.5 KB)

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