## ComputeDKL_M

##### >Psychtoolbox>PsychColorimetric

[M,LMLumWeights] = ComputeDKL_M(bg,T_cones,T_Y)

Compute the matrix that converts between incremental cone

coordinates and DKL space. The order of

the coordinates in the DKL column vectors is (Lum, RG, S)

The code follows that published by Brainard

as an appendix to Human Color Vision by Kaiser

and Boynton, but has been generalized to work

for passed cone fundamentals and luminosity

function.

These should be passed in standard Psychtoolbox

form (LMS in rows of T_cones; luminosity function

as single row vector T_Y).

The argument bg is the LMS cone coordinates of the

background that defines the space.

See [DKLDemo](DKLDemo) for proper use of this function. Also

DKLToConeInc and ConeIncToDKL.

8/30/96 dhb Pulled it out.

4/9/05 dhb Allow passing of cones and luminance to be used.

11/17/05 dhb Require passing of cones and luminance.

dhb Fixed definition of M_raw to handle arbitrary L,M scaling.

10/5/12 dhb Comment specifying coordinate system convention. Supress extraneous printout.

04/13/17 dhb Return weights that give luminance from sum of L and M cone excitations.

`Psychtoolbox/PsychColorimetric/ComputeDKL_M.m`