Reference Name: ITU-R BT.601
Definition: ITU-R BT.709-6: Studio encoding parameters of digital television for standard 4:3 and wide-screen 16:9 aspect ratios.
Responsible Organization: International Telecommunication Union
Contact Information: ICC Technical Secretary email: technicalsecretary@color.org
DOCUMENTATION
Documentation source ITU Recommendation BT.601-7(03/2011)
ENCODING CHARACTERISTICS
Color space
Type: Colorimetric RGB color space
RGB primaries:
525-line 625-line
x y z x y z
R 0.63 0.34 0.03 0.64 0.33 0.03
G 0.31 0.595 0.095 0.29 0.60 0.11
B 0.155 0.07 0.775 0.15 0.06 0.79
Color component transfer function: 2.4 gamma
White point luminance: 100 cd/m2
White point chromaticity: x = 0.3127, y = 0.3290 (D65)
Encoding Range: linear RGB: 0.0 to 1.0
Bit depth: 8
Image state: Output-referred (CRT)
PROFILES
Profiles for the Rec. 601 Display are available:
Note that 525-line and 625-line encodings were previously designated NTSC and PAL respectively in ITU-R BT.1700.
HINTS FOR PROFILE MAKERS
See Transforming via the ICC PCS for details on the derivation and use of D50 adapted data, chromatic adaptation matrix and measurement corrections.