Translations of this page:
[BC:
<Brightness>,<Contrast>
,<X>, <Y>
,
<W>, <H>
The [BC: ]
modifier changes the colors in the given area of the picture (or in the whole picture, if all the <X>, <Y>, <W>, <H>
parameters are missing). Both the posible brightness and contrast changes are in a scale from -1 to 1. One can specify the values also as percent values - if the <Brightness>
and <Contrast> values are below -1.0 or above 1.0, then the values will be divided by 100.0 before using them.