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Table 3.

Information about the reference images.

Filter Nobs Nref Percentage
(1) (2) (3) (4)
NB4250 556 471 85%
NB5975 542 356 66%
NB7320 536 343 64%
NB8025 531 354 67%

Notes. Column (1): NB filter. Columns (2)–(4): Total number of observations, number of images used for building the reference image, and corresponding percentage.

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.