/*
 * This script creates a sequence with channel 0 and a black channel.
 */
importClass(Packages.icy.type.DataType)
importClass(Packages.icy.image.IcyBufferedImage)
importClass(Packages.icy.sequence.Sequence)
importClass(Packages.icy.sequence.SequenceUtil)

// get sequence
seq = getSequence()
if (seq == null) throw "Please open a sequence first"

// extract channels
w = seq.getWidth()
h = seq.getHeight()
type = seq.getDataType_()

seq0 = SequenceUtil.extractChannel(seq, 0)
seq1 = new Sequence(new IcyBufferedImage(w, h, 1, type))

for (t = 0; t < seq0.getSizeT() ; t = t + 1) {

	for (z = 0; z < seq0.getSizeZ() ; z = z + 1) {

		// Creates an image of 512x512 with 1 channel of type Unsigned Byte
		img = new IcyBufferedImage(w, h, 1, type)

		// Add the image in the sequence
		seq1.addImage(t, img)
	}
}

// combine both channels. When combining, it is necessary to 
// ALWAYS have the same dimensions.
merged = SequenceUtil.concatC([seq0, seq1])

// add the sequence
gui.addSequence(merged)