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Figure 8
Anisotropic magnification plots for the high-resolution mouse apoferritin data set. The top row shows the estimated displacement for each pixel ([\hat{\delta_{\bf k}}] in equation 31[link]), while the bottom row shows the displacement corresponding to the estimated magnification matrix M (i.e. Mk − k). Note that the per-pixel estimates follow a linear relationship, indicating that the displacements are indeed caused by a linear transformation of the image. The horizontal coordinate is defined as increasing to the right and the vertical coordinate as increasing downwards, so the two plots indicate a horizontal dilation and a vertical compression. The dashed circle indicates a resolution of 1.04 Å.

IUCrJ
Volume 7| Part 2| March 2020| Pages 253-267
ISSN: 2052-2525
https://doi.org/10.1107/S2052252520000081