Lines Matching refs:background
28 # 4 The background table
68 # "N" is the number of elements in the foreground and background tables
70 # for foreground and background tables.
72 # 2. The union of the foreground an background tables consists of N entries
76 # the foreground it is removed form the background and vice versa.
78 # 3. Some entries in the foreground and background tables have keys that
83 # background tables.
85 # 4. The data for both foreground and background entries is usually a
90 # foreground or background entry.
153 return "Key $i is missing from both foreground and background"
193 # $I and it is put in background with probability (1.0-$I). It gets