Here be there dragons: water and light

2022-01-25_12-58-48.53_DSC6109.NEF (23.9 MB)
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Hi everyone … it’s been a while since I’ve posted much - a SARS Cov-19 outbreak in my place of work (aged care) starting on Christmas Day and running for a month has been a distraction and a concern. However this week was a much-needed short stay-cation. I went to one of my favourite haunts where I often capture birds, but got quite a few of these Eastern water dragons as well. This is my favourite capture, but the light reflections on the right spoil it for me. I want to be able to process it enough to see the underwater portion of the tail well, and remove the distracting over-bright reflections. I’ve managed to get someway to what I would like with a gradient mask and lots of experimentation. (I tried a parametric mask on its own and in combination with the gradient without results that came close to this).

Over to you … is this salvageable? Or is it a case of poor location and framing by the photographer?


2022-01-25_12-58-48.53_DSC6109.NEF.xmp (9.3 KB)

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I think I would just go for a tight crop…but that is just me…

3.9.0+172~g5ced2e5b3-dirty with Filmic v6
2022-01-25_12-58-48.53_DSC6109.NEF.xmp (14.8 KB)

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Thanks, Todd. I think this akin to solving the Gordian knot by Alexander’s means, however!! :stuck_out_tongue_winking_eye: https://en.wikipedia.org/wiki/Gordian_Knot

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I don’t think you can correct that very well afterwards. At least not without a lot of effort.
For situations like this, polarization filter is your best friend. :wink:

However, scene has tempted me to test some GMI’C filters.

First I tried to neutralize the reflection to some extent in darktable:

2022-01-25_12-58-48.53_DSC6109.NEF.xmp (14,6 KB)

And then in GIMP - after some dodging and burning - I used GMI’C filter inpaint (multi scale) to smooth the separation in the middle and at the end colour grading filter to change the colours and contrasts a bit:

It could certainly have been done better with more effort, but it is enough as a demonstration of what can be achieved with free software. :slightly_smiling_face:

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Thanks … !

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Boris, thank you again … now with a fresh mug of flat white in the morning I can reply with more than a single word!

A polarization filter would certainly have been a great help - unfortunately I only have 55mm. The 95mm diameter one that would fit my Sigma lens that I used would pay for my grocery bill for 3 weeks. Maybe one day.

It seems that I will have to invest the time and effort into becoming proficient at GMI’C. I thank you for your effort, because the result is very pleasing. :clap: :clap: :clap: :clap:

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My try. darktable 3.8 only.


2022-01-25_12-58-48.53_DSC6109.NEF.xmp (33.0 KB)

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Nice job…to me its likely still a lot of work for a big chunk of dead space…I think even if it looked okay a tighter crop is a nicer composition for this image…but it is nice to see what can be done…

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Very nice job and a good example of what one can do to safe/restore an image if needed! Not sure if this specific one counts as such, but good to know it can be done.

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Thomas, that’s fantastic! I will study closely your edits in the hope of learning how better to use darktable’s power!

Merci beaucoup! Danke Schoen! (insert preferred language here).

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Excellent. Good strategy. Looks spectacular. Superb Composition.

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