Fig. 8
A 3D micro-computed tomography image of the dense spiral material with textiles around it. The low energy required to capture the details of the textile causes streaking artefacts around the denser spiral material, reducing the image quality of the textile. B The denser spiral material is clearly visible after removing the low-attenuating textile around it by simple image thresholding. Scalebars 1 mm. (Images by V-P. Karjalainen)