How to Use the Instrument
Description and Applications of the Test Patterns
4
4-57
Color Bar
Color Bar
offers four different test patterns:
•
Full Field Color Bar
•
Split Field Color Bar
•
SMPTE Color Bar
•
Horizontal Color Bar
Full Field Color Bar
The full field Color Bar shows from left to right eight vertical bars for the 625 line
systems:
White, Yellow, Cyan, Green, Magenta, Red, Blue, and Black. For 625 line systems this
pattern offers four selectable primary color signal levels. For further details, see table
below.
For 525 line systems the first seven vertical bars are shown; the black bar is not present.
Two primary color signal levels are selectable.
Table 4-6. Full Field Color Bar
Display indication
625 Line System 525 Line System
•
Level
COL_75_0
COL_100_0
COL_75_25
COL_100_25
75 / 0 / 75/ 0*
100 / 0 / 75 / 0*
75 / 0 / 100 / 25*
100 / 0 / 100 / 25*
75 / 7.5 / 75 / 7.5*
100 / 7.5 / 75 / 7.5*
-
-
*according to ITU Rec. 471-1/ 1994;
*for details, see Appendix E.
Figure 4-87. Color Bar, 625 Line Systems