Table 3.11 (Continued)

6

ITU-R Recommendation BT.1700 [3.3] (2007 revision) NTSC

ITU-R Recommendation BT.1358 [3.5] 525

SMPTE 170M [3.2]

IEC 61966-2-4 xvYCC₆₀₁ [3.13] (Functionally the same as the value 5)

ITU-R Recommendation BT.470-6 systems B, G (historical) (Functionally the same as the value 6)

ITU-R Recommendation BT.601-6 [3.4] 525 (Functionally the same as the value 5) (ISO/IEC 13818-2, 14496-2)

7

SMPTE 240M (1987) 3.21

8

YCgCo

9-255

Reserved. For future use ITU-T/ISO/IEC

is analog with the value 0 associated with nominal black and the value 1 associated with nominal white;

and are analog with the value 0 associated with both nominal black and nominal white;

When transfer_characteristics is not equal to 11 or 12, has values between 0 and 1;

When transfer_characteristics is not equal to 11 or 12, and have values between -0.5 and 0.5;

When transfer_characteristics is not equal to 11 (IEC 61966-2-4) or 12 (ITU-R Recommendation BT.1361 extended color gamut system), are analog with a larger range not specified in this International Standard;

are related to by the following formulae:

If video_range is equal to 0:

If video_range is equal to 1:

for n bit video.

• If matrix_coefficients is equal to 8 , the following applies:

If video_range is equal to 0:

Note 1 – For purposes of the nomenclature used in Table, and d in the above equations may be referred to as and , respectively. The inverse conversion for the above three equations should be computed as:

Note 2 – The decoding process given in the Recommendation | International standard limits output sample values for Y, C_r and C_b to the range [0:255]. Thus, sample values :outside the range implied by the above equations may occasionally occur at the output of the decoding process/ In particular the sample values 0 and 255 may occur

In the case that sequence_display_extension() is not present in the bitstream or color_description is zero the matrix coefficients are assumed to be implicitly defined by the application.

Note 3 – In applications which may have signals with more than one set of color primaries, transfer characteristics, and/or matrix coefficients, it is recommended to transmit a sequence display extension with color_description set to one, and to specify the appropriate values for the colorimetry parameters.

If video_range is equal to 0:

for n bit video.

are related to R, G and B by the following formulae:

Note – For purposes of the nomenclature used in Table, and in the above equations may be referred to as and , respectively. The inverse conversion for the above three equations should be computed as:

In the case that video_signal_type() is not present in the bitstream or color_description is zero the matrix coefficients are assumed to be those corresponding to matrix_coefficients having the value 1.

In the case that video_signal_type() is not present in the bitstream, video_range is assumed to have the value 0 (a range of Y from 16 to 235 for 8-bit video).