pyktx.khr_df_transfer module

class pyktx.khr_df_transfer.KhrDfTransfer(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)[source]

Bases: IntEnum

The transfer function of an image.

UNSPECIFIED = 0: No transfer function defined.

LINEAR = 1: Linear transfer function (value proportional to intensity.

SRGB = 2

SRGB_EOTF = 2

SCRGB = 2

SCRGB_EOTF = 2: Perceptually-linear transfer function of sRGB (~2.2); also used for scRGB.

ITU = 3

ITU_OETF = 3

BT601 = 3

BT601_OETF = 3

BT709 = 3

BT709_OETF = 3

BT2020 = 3

BT2020_OETF = 3: Perceptually-linear transfer function of ITU BT.601, BT.709 and BT.2020 (~1/.45).

SMTPE170M = 3

SMTPE170M_OETF = 3

SMTPE170M_EOTF = 3: SMTPE170M (digital NTSC) defines an alias for the ITU transfer function (~1/.45) and a linear OOTF.

NTSC = 4

NTSC_EOTF = 4: Perceptually-linear gamma function of original NTSC (simple 2.2 gamma).

SLOG = 5

SLOG_OETF = 5: Sony S-log used by Sony video cameras.

SLOG2 = 6

SLOG2_OETF = 6: Sony S-log 2 used by Sony video cameras.

BT1886 = 7

BT1886_EOTF = 7: ITU BT.1886 EOTF.

HLG_OETF = 8: ITU BT.2100 HLG OETF (typical scene-referred content), linear light normalized 0..1.

HLG_EOTF = 9: ITU BT.2100 HLG EOTF (nominal HDR display of HLG content), linear light normalized 0..1.

PQ_EOTF = 10: ITU BT.2100 PQ EOTF (typical HDR display-referred PQ content).

PQ_OETF = 11: ITU BT.2100 PQ OETF (nominal scene described by PQ HDR content).

DCIP3 = 12

DCIP3_EOTF = 12: DCI P3 transfer function.

PAL_OETF = 13: Legacy PAL OETF.

PAL625_EOTF = 14: Legacy PAL 625-line EOTF.

ST240 = 15

ST240_OETF = 15

ST240_EOTF = 15: Legacy ST240 transfer function.

ACESCC = 16

ACESCC_OETF = 16: ACEScc transfer function.

ACESCCT = 17

ACESCCT_OETF = 17: ACEScct transfer function.

ADOBERGB = 18

ADOBERGB_EOTF = 18: Adobe RGB (1998) transfer function.

HLG_UNNORMALIZED_OETF = 19: Legacy ITU BT.2100 HLG OETF (typical scene-referred content), linear light normalized 0..12.

MAX = 255