A macroset to toggle channel in composite images.

Toggle_channels.ijm

// suggested by Michael Nelson @IAMichaelNelson 
// Senthil Arumugam @dopaminator suggested the jitter channel vizassist function

macro "toggle CH1 [F1]" {toggleChannel(1);}
macro "toggle CH2 [F2]" {toggleChannel(2);}
macro "toggle CH3 [F3]" {toggleChannel(3);}
macro "toggle CH4 [F4]" {toggleChannel(4);}
macro "toggle CH5 [F5]" {toggleChannel(5);}
macro "toggle CH6 [F6]" {toggleChannel(6);}
macro "toggle CH7 [F7]" {toggleChannel(7);}
macro "toggle CH7 [F8]" {jitter_channel_vizassist();}

function toggleChannel(i) {
  if (nImages<1) return;
  if (!is("composite")) return;
  Stack.getActiveChannels(s);
  c=s.substring(i-1,i);
  Stack.setActiveChannels(s.substring(0,i-1)+!c+s.substring(i));
  Stack.getDisplayMode(mode);
  Stack.setChannel(i);
}

function jitter_channel_vizassist() {
  Stack.getPosition(channel, slice, frame);
  for (i=0;i<10;i++) {
    toggleChannel(channel);
    wait(200);
  }
}