\setupindenting[big,yes]
\setupfloat[figure][indentnext=yes]

\starttext

\dorecurse{1}{\input knuth \par}

\placefigure
        [inner]
	{}
	{\externalfigure[cow][width=0.5\textwidth]}

\dorecurse{1}{\input knuth \par}

\stoptext