Lines Matching refs:background

30 #     4   The background table
70 #       "N" is the number of elements in the foreground and background tables
72 #       for foreground and background tables.
74 #   2.  The union of the foreground an background tables consists of N entries
78 #       the foreground it is removed form the background and vice versa.
80 #   3.  Some entries in the foreground and background tables have keys that
85 #       background tables.
87 #   4.  The data for both foreground and background entries is usually a
92 #       foreground or background entry.
155         return "Key $i is missing from both foreground and background"
195 # $I and it is put in background with probability (1.0-$I).  It gets