Structural data extraction

LA Liam D. Aubrey
BB Ben J. F. Blakeman
LL Liisa Lutter
CS Christopher J. Serpell
MT Mick F. Tuite
LS Louise C. Serpell
WX Wei-Feng Xue
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Fibrils were traced69,70 and digitally straightened71 using an in-house application and the height profile for each fibril was extracted from the centre contour line of the straightened fibrils. The periodicity of the fibrils was then determined using fast-Fourier transform of the height profile of each fibril. Some fibrils do not display any clear periodicity and have a height profile that appears to show an erratic pattern so frequency of the highest peak in the frequency domain per nm was used. The final datasets consist of a varying multitude of images comprising ~90 individually traced fibrils per Waltz sequence. The same pixel density is maintained for all images within the dataset.

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