Open Access
Fig. 1
Variable parameters in our grid. Parameters with specific indications in orange depend on
B–V and/or Log 
, and we also consider two or three laws, as indicated. A few parameters depend on specific conditions (plage contrast). The 2D grid in B–V and Log 
is detailed in Fig. 3.
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.