How to use ilut and olut options

[djedje]

Hi,

I want to convert a dpx file into jpeg using nconvert but i would like to apply a lut conversion because my source is in a logarithmic color space.
Conversion works fine except for the lut.
Here is my command

nconvert -out jpeg -resize 720 576 -ratio -ilut kodak2383.tif -o output.jpg myinput.dpx

Do I use the right method?
when shall i use ilut or olut?