DICOM PS3.3 2019a - Information Object Definitions
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:

DICOM PS3.3 2019a - Information Object Definitions