set cut_paste_input [stack 0]
version 10.5 v3
push $cut_paste_input
Group {
 name OnlyLuma
 selected true
 xpos -777
 ypos 63
 addUserKnob {20 User}
 addUserKnob {26 luma l "rgb luma contribution only"}
}
 Input {
  inputs 0
  name Input1
  xpos 53
  ypos -93
 }
set N90153800 [stack 0]
push $N90153800
 Expression {
  expr0 (r/(r+g+b)/3)
  expr1 (g/(r+g+b)/3)
  expr2 (b/(r+g+b)/3)
  name ColorContribution
  xpos 53
  ypos -53
 }
 Merge2 {
  inputs 2
  operation divide
  name Merge1
  xpos 110
  ypos 50
 }
 Output {
  name Output1
  xpos 110
  ypos 150
 }
end_group
# Creation Time=Mon Jul 03 20:26:30 2017
# Creator=ne