a numeric Nx3 matrix with CIE XYZ coordinates in the rows, or a vector that can be converted to such a matrix, by row. The XYZ are assumed to be viewed under the white-point of the given RGB space.

a numeric Nx3 matrix with linear RGB coordinates in the rows, or a vector that can be converted to such a matrix, by row. The RGB may be outside the corresponding domain box (either scene or display), see Details.

the name of an installed RGB space. The name matching is partial and case-insensitive.

the input linear RGB - either 'scene' or 'display'.

if not NULL, TF is a TransferFunction that overrides the appropriate transfer function of space. TF can also be a positive number. If TF=1, then TF is set to identity.TF, so the returned RGB values are actually linear, and they are not clamped to the appropriate domain box (see Value). If TF!=1 it is used to create either power.EOTF() or power.OETF() as approriate. If TF is not NULL in SignalRGBfromLinearRGB(), then space is ignored.

maximum value of non-linear RGB. Other common values are 100, 255, 1023, 4095, and 65535. Even when 1, they are still taken to be non-linear Signal values.

signal RGB. If TF is not the identity, all input linear RGB values are clamped to the appropriate domain box, which implies that the signal RGBs are inside the cube [0,maxSignal]^3. Values are not rounded.

logical vector, TRUE means the input linear RGB was outside the domain box before clamping it.