I understand that the raw file actually has oranges and yellows, but the flowers were actually entirely red in real life, not even the trace of orange that Filmulator delivered.
I think this is why people complain about digital reds.
Yes, I think I got a better red at the expense of the rich greens in the background.
So, what would this be about, that the red response (and blue also, for that matter) of most cameras where I’ve seen the spectral response curves are “less-definitive” than the expanse of green response? Not a very precise sentence, but looking for a bit of discussion…
If parts of the flower that appears red to human eye, are decoded as orange or yellow, does’nt this mean that the green sites of the sensor are activated?
And thus the sensor green response should be wrong in such cases?
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Since no filter is ideal, it could be that a very strong red signal can produce a non-zero input to the green sensors.
I’m just speculating here, extrapolating from my experience with DSP.
Typically the raw green photosites are activated to some extent by red light, but the color profile matrix is supposed to correct for this.
But unless you designed the color profile with tulips in mind it might have errors for extreme colors.
Red by eye or instrument?
Yes, direct sunlight only.
By eye.
Indeed, the transitions between cooler and warmer reds in the petals look very strange, but they are definitely part of the captured values. I have tried both the standard Adobe matrix profile and few DCP profiles for the Canon 60D, with the same kind of result.
Here are two attempts, converted to sRGB from ACEScg with PhotoFlows’s gamut mapping function.
Accurate luminance, no saturation recovery:
With partial saturation recovery:
IMG_1360_QP3MHiz-phf-gm-sat30.tif
Interesting challenge! here’s my attempt (disclaimer: done on a crappy laptop screen – calibrated and profiled, but still crappy)
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I’ll take a completely sideways look at the image here.
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Hi, my contribute
IMG_1360_gem.CR2.pp3 (12.4 KB)
IMG_1360_gem.tif (3.1 MB)
How, do I attach the image, for viewing?? I do not no more able to 
I did sometime ago but now I do not how to …
Just use JPG.
Something just happened it seems.
Playing w/ @Joan_Rake1 modification of Spiral Matrix, and my own changes to it. Between the transforms, I smoothed the image.
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