newImage("a", "16-bit ramp", 512, 512,1);
newImage("b", "16-bit ramp", 512, 512,1);
selectWindow("a");
setMinAndMax(25, 4000);
run("Merge Channels...", "c1=a c2=b create");
run("Show Info...");
// Info shows image is a composite
run("Rotate 90 Degrees Right");
run("Show Info...");