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Flowers on Black
12. Februar 2023 /Using Lab-colors a black background can be achieved by inverting the L-channel.
Fusion X-ray photo Calla lilies IV. Black background using Lab inversion. © Julian KöpkeFusion X-ray photo Calla lilies IV. Black background using Lab inversion. © Julian KöpkeComposition © Julian KöpkeComposition © Julian KöpkeWhite Amaryllis © Julian KöpkeWhite Amaryllis © Julian KöpkeRose leaves © Julian KöpkeRose leaves © Julian KöpkePapaver II © Julian KöpkePapaver II © Julian KöpkeClematis © Julian KöpkeClematis © Julian KöpkeRed amaryllis on a lightbox with a black background © Julian KöpkeRed amaryllis on a lightbox with a black background © Julian KöpkeAmaryllis Lab color inversion photography © Julian KöpkeAmaryllis Lab color inversion photography © Julian Köpke -
X-ray Odyssey
How to communicate an erratic process in terms of an image ? The Iliadic greek were pirates of the Mediterranean with fast vessels, invading mainland from the seas, enslaving people, robbing stocks and much more.
The writing down of the Ilias was between 678 and 662 B.C., a time of Assyrian dominance and cultural superiority.
With three different Nautilus shells I bought last September on Crete I did this composition on my big X-ray sensor with 35cm x 43 cm and 170µm per pixel resolution. Two energy levels were necessary to get a high resolution image of the core of the Nautilus shells.
To overcome the look-and-feel of a medical X-ray it is a logical idea to invert the light. Black becomes white and vice versa. White means shining through of X-rays, black means opacity. It’s like a dream !
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Mediterranean creatures on a lightbox
Today I put some tests on my cretean purchases from last September to evaluate their potential of being subject to fusion imaging. I bought three Nautilus shells and two sea snails, holding them in the store against the sun to check their transparency. My untidy studio accommodated these precious stones under quite a bunch of something.
The best representation is with a black background, i.e. with inverted L-channel in Lab colors. With a black background a soft shining light appears in the objects.
This snail has a shape a triangle and resembles a bear claw or an Apollo capsule in the late Sixties. The translucency is very little.
The following snail has a classic shape. With the black background it resembles a galaxy in outer space.
My first attempt with the Nautilus shells led me to a copper-like color representation with a single shot image. Lab colors is the key to this color and light distribution. Very attractive is the fact of two shells turning right and one left. Why did I wait so long to make this image ? Why do we miss important opportunities ?
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Flowers on Black
4. November 2018 /