Fig. 3

Pre-processing correction. (a) Raw image. (b) Original flat image. (c) Detected imaging skin contour (in red) on the dark-field-corrected flat image. (d) Final corrected image.

Pre-processing correction. (a) Raw image. (b) Original flat image. (c) Detected imaging skin contour (in red) on the dark-field-corrected flat image. (d) Final corrected image.