Module named_transfer_fn

Constants

• A98_RGB
  https://www.w3.org/TR/css-color-4/#predefined-a98-rgb
• DOT22
• HLG
  Rec. ITU-R BT.2100-2 hybrid log-gamma (HLG) system, value 18.
• IEC61966_2_1
  IEC 61966-2-1 sRGB, value 13.
• IEC61966_2_4
  IEC 61966-2-4, value 11, same as REC709 (but is explicitly extended).
• LINEAR
  Linear, value 8
• PQ
  Rec. ITU-R BT.2100-2 perceptual quantization (PQ) system, value 16.
• PRO_PHOTO_RGB
  https://w3.org/TR/css-color-4/#valdef-color-prophoto-rgb “The transfer curve is a gamma function with a value of 1/1.8”
• REC601
  Rec. ITU-R BT.601-7, same as kRec709, value 6.
• REC709
  Rec. ITU-R BT.709-6, value 1.
• REC470_SYSTEM_BG
  Rec. ITU-R BT.470-6 System B, G (historical) assumed display gamma 2.8, value 5.
• REC470_SYSTEM_M
  Rec. ITU-R BT.470-6 System M (historical) assumed display gamma 2.2, value 4.
• REC2020_10BIT
  Rec. ITU-R BT.2020-2 (10-bit system), value 14.
• REC2020_12BIT
  Rec. ITU-R BT.2020-2 (12-bit system), value 15.
• SMPTE_ST_240
  SMPTE ST 240, value 7.
• SMPTE_ST_428_1
  SMPTE ST 428-1, value 17.
• SRGB

Type Aliases

• CicpId
  Mapping between transfer function names and the number of the corresponding row in ITU-T H.273, table 3. As above, the constants are named based on the first specification referenced in the value’s row.