VImage gammacorrect( double ); VImage heq( int ); VImage hist( int ); VImage histcum(); VImage histeq(); VImage histgr( int ); VImage histnD( int ); VImage histnorm(); VImage histplot(); VImage histspec( VImage ); VImage histspec_old( VImage ); VImage hsp( VImage ); static VImage identity( int ); static VImage identity_ushort( int, int ); int ismonotonic(); VImage lhisteq( int, int ); VImage lhisteq_raw( int, int ); static VImage invertlut( VDMask, int ); VImage maplut( VImage ); VImage stdif( double, double, double, double, int, int ); VImage stdif_raw( double, double, double, double, int, int ); VImage tone_analyse( double, double, double, double, double, double ); static VImage tone_build( double, double, double, double, double, double, double, double ); VImage tone_map( VImage );