The svg version with its Matlab code were also uploaded to Wikipedia (English and German).
siemens_star_m.pdf A Matlab script where you can choose the number of strokes. Usable from any public/private cluster, network or cloud, POD enables cloud computing, burst capacity and flexible usage of your CFD-focused multiphysics simulation. siemens_star.svg An svg version with 64 stripes Engineer innovation with Simcenter STAR-CCM+ without hardware and licensing constraints using on-demand, pay-as-you-go Power On Demand (POD) licensing on unlimited number of cores. Beware that many vector formats nowadays support (or are rendered as) raster graphics you will recognize pure vector format by its small file size, or that they can be enlarged indefinitely without jagged contours. So that only the resolution of the displaying device comes into play. To work properly, a Siemens star should best be given as vector graphics (svg, pdf, eps, emf, ai, etc.), See our paper Blur Unblurred (Strasburger, Heinrich, Bach i-Perception 2018 open access) for explanations. The latter lets one see stripes towards the center of the Siemens star that are not physically presentĪnd have the opposite polarity relative to the actual stripes. Uncorrected short-sightedness) gives rise to spurious resolution. Its luminance profile is rectangular and under optical blur (by, e.g., bad accommodation or 
The Siemens star is a radial pattern used to test the resolution of optical instruments.
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