Open Access
Figure 2

Download original image
Left: Picture with a repetitive pattern. The spacing between the black lines is 13 pixels and can be determined through Fourier analysis. Right: A slice of the picture along the x-axis, used for 1D Fourier image analysis.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.