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Figure 3
Retrieved dark-field images of the carbon-sphere sample using the different retrieval approaches: (a) dual-energy propagation-based, (b) single-grid, (c) single-speckle and (d) multi-speckle. Dashed orange arrows in panels (a) and (d) highlight edges in the sample that are only resolved by the corresponding approaches. The white rectangle in panel (a) denotes the 1 mm scale bar for all images. The grayscale ranges for the images are [min (black), max (white)]: (a) = [0.0, 1.5] × 10−10, (b) = [0.0, 1.0] × 10−10, (c) = [0.0, 4.0] × 10−11 and (d) = [0.0, 6.0] × 10−11.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 2| March 2026| Pages 437-447
https://doi.org/10.1107/S1600577525011403
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