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FAQ: Fusion imaging
3. November 2018 /Explanation of the idea
Fusion imaging is a child of the digital era of mapping structures. Before image fusion was used in diagnostic radiology, astronomers used it to extract new insights from our universe. Fusion imaging of flowers can be beautiful. And, maybe, it’s a starting point for research in new fields.
The use of photography was initially, after its invention in the 40s of the 19th century, nothing more than a gadget. Only by astronomers, that used used photography for detection of asteroids, photography became a serious matter. By comparison („blinking“) of photographies astronomers discovered mobile objects within a field of fixed stars. In Heidelberg, Max Wolf (1863 – 1932) has been a pioneer of astrophotography.
Imaging of flowers is nothing new. But in the digital era of photography, the mapping possibilities changed fundamentally. It became possible to create the illusion of transparency or translucency by using a set of HDR images at the HighKey side of the exposures. The procedure was introduced by Harold Davis.
X-rays were initially used for medical diagnostics and therapy. Their ability to reveal structures inside an object with an opaque surface was the driving feature of technical development in this field. Nowadays x-rays are used to examin technical structures and there are telescopes to map x-rays from our Galaxy. Every technician who started in its profession learned to do x-rays of interesting structures like flowers, animals or teddy bears. X-ray images of flowers are nothing new.
Transparent looking flowers and transparent looking x-rays of the same flowers are each already for itself appealing to our eye and mind. By combining two digital images of the same structure in visible light and x-ray there is something new to happen. We name this combined procedure „fusion imaging“ and the result of a combination a „fusion image“.
How it works in a nutshell
First, create an HDR of flowers (see Harold Davis). Then create an x-ray of the same composition (see FAQ: X-Ray of Flowers). Last, not least: combine the HDR image and the corresponding x-ray with appropriate editing software.
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About me
3. November 2018 /Julian Köpke
What am I doing ?
Sometimes I answer: I’m making every day black and white images to earn my life. I’m a radiologist by profession, a physicist and physician by graduation.
Beside scientific research I always felt attracted by music, literature, painting and art.
After times of painting in watercolor, oil and sketching I restarted photography in 2005 with my first digital SLR, a Canon 350D. After a couple of years of poking around in the dark I discovered astrophotography in 2010.
Physical properties of lenses, telescopes and of sensors had to be understood. I became familiar with technical details of image acquisition and editing under a cosmos of conditions.
And I found a way back to the light at daytime. Only recent with a friend we combined digital images of photo sensors and x-ray sensors to get beautiful results.
The sky is the limit.
Julian Köpke
- email me: jk (at) himla.de
What's important to me
Ever since I undertook any image related efforts: there’s always something to show, the naked eye wouldn’t see without.
It’s just normal in my profession as a radiologist.
It’s likewise in astronomy.
And in good photographs, too.