High Dynamic Range Imaging of Magnetized Sheet Plasma

High Dynamic Range Imaging of Magnetized Sheet Plasma

High dynamic range (HDR) imaging was used to obtain a wide intensity map of a magnetized sheet plasma. A set of 12 low dynamic range (LDR) photographs with various shutter speeds (1/200-1/2 s) was captured with an Olympus FE-19 digital camera. The LDR images were processed to recover color channel r...

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Veröffentlicht in:IEEE transactions on plasma science 2011-11, Vol.39 (11), p.2492-2493
Hauptverfasser: Rosario, L. M. D., Ting, J. A. S., Viloan, R. P. B., Suarez, B. A. T., Villamayor, M. M. S., Tumlos, R. B., Soriano, M. N., Ramos, H. J.
Format: Artikel
Sprache:eng
Schlagworte:
Channels
Color
Comparative analysis
Digital cameras
Dynamic range
Histograms
Image color analysis
Imaging
Magnetic confinement
Magnetic resonance imaging
Mapping
plasma diagnostics
Plasma physics
Plasmas
Radiance
Response functions
Saturation magnetization
Shutters
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Zusammenfassung:High dynamic range (HDR) imaging was used to obtain a wide intensity map of a magnetized sheet plasma. A set of 12 low dynamic range (LDR) photographs with various shutter speeds (1/200-1/2 s) was captured with an Olympus FE-19 digital camera. The LDR images were processed to recover color channel response functions of the camera needed to produce RGB radiance maps. The HDR image was finally generated from the combined radiance maps via linear tone mapping. By comparison of histograms, the HDR image uses the whole range of intensity values compared with the underexposed and overexposed LDR images.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2011.2163647