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(0028,1401) Data Frame Assignment Sequence1Sequence
(0028,1404) Blending LUT 1 Sequence1CSequence
(0028,140B) Enhanced Palette Color Lookup Table Sequence1CSequence
(0028,140C) Blending LUT 2 Sequence1CSequence
(0028,1406) Blending Weight Constant1CDouble
(0028,1407) Blending Lookup Table Descriptor1CUnsigned Short
(0028,1408) Blending Lookup Table Data1COther Word String
(0028,140D) Blending LUT 2 Transfer Function1Code String
(0028,2000) ICC Profile1COther Byte String
(0028,2002) Color Space3Code String
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Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 18 April 2024. The DICOM Standard is under continuous maintenance, and the current official version is available at http://www.dicomstandard.org/current/. DICOM Parts 3, 4, and 6, © NEMA. Please note that the most recent PDF version of the standard is the official reference, and should checked when making technical decisions.

Blending LUT 2 Transfer Function Attribute

Tag(0028,140D)
TypeRequired (1)
KeywordBlendingLUT2TransferFunction
Value Multiplicity1
Value RepresentationCode String (CS)

Specifies the algorithm used to determine the output value of Blending LUT 2.

Enumerated Values:

CONSTANT

ONE_MINUS

ALPHA_1

ALPHA_2

TABLE

See Section C.7.6.23.4 for details.

Section C.7.6.23.4

C.7.6.23.4 Blending LUT Transfer Function

The value of Blending LUT 1 Transfer Function (0028,1405) and Blending LUT 2 Transfer Function (0028,140D) specify the algorithm used to determine the output values of the Blending LUT 1 and Blending LUT 2, respectively.

Enumerated Values:

CONSTANT

A constant floating point value from 0.0 to 1.0, inclusive

ALPHA_1

Pass-through the Alpha 1 input value from the Alpha Palette Color Lookup Table of the Primary data path

ALPHA_2

Pass-through the Alpha 2 input value from the Alpha Palette Color Lookup Table of the Secondary data path

TABLE

The output of a Table defining a function of the Alphas from both data paths

ONE_MINUS

The Blending LUT 2 value is (1 - Blending LUT 1 output); used for Blending LUT 2 Transfer Function (0028,140D) only

If the value is TABLE:

  • The Alpha 1 input value from the Alpha Palette Color Lookup Table of the Primary data path and the Alpha 2 input value from the Alpha Palette Color Lookup Table of the Secondary data are concatenated to form an index into a Lookup Table, with the Alpha 1 value providing the most significant bits of the index and the Alpha 2 value providing the least significant bits of the index.

  • If the index is too large for the number of entries in the Lookup Table, the last value of the Lookup Table is used for any index value greater than the number of Lookup Table entries. If the index is too small for the number of entries in the Lookup Table, than not all entries in the Lookup Table are accessed. The total number of bits in the index value shall be equal to or less than 16.