SpectrumLut

Field

Type

Repeated

Description

source

SpectrumExpression

interpolation_method

SpectrumLutInterpolationMethod

strength

double

name

string

filename

string

output_primaries

SpectrumColorPrimariesValue

Optional output color metadata. Use these to declare what the image looks like AFTER the LUT has been applied — for example a LUT that converts BT.2020/PQ to BT.709/SDR should set output_primaries=BT709, output_transfer=BT1886, output_range=LIMITED. If unset (or AUTO for range), the LUT is assumed to preserve the source’s color metadata.

output_transfer

SpectrumTransferFunctionValue

output_range

SpectrumVideoRange

Member of

Message

Description

SpectrumExpression