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Figure 6
Soil-like phantom (a, c) with wetting phase constructed from triangular mesh (b) and two other phases constructed from circles to resemble a source image (d) as seen in Narter & Brusseau (2010BB25). The circles were extracted from the source image using canny edges and a Hough tranform. The wetting phase was extracted from the source using simple thresholding, converted to a contour using the marching squares algorithm, and then converted to a triangular mesh using Python Triangle (https://github.com/drufat/triangle).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 24| Part 2| March 2017| Pages 537-544
https://doi.org/10.1107/S1600577517001928
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