Which LUTs is my image using?

LUT_Detection.groovy

#@ LUTService lut
#@ DatasetView dv
#@ boolean verbose

def printColorTable = { t ->
	if (t == null) {
		println(" null")
		return
	}
	for (comp = 0; comp < t.getComponentCount(); comp++) {
		for (bin = 0; bin < t.getLength(); bin++) {
			print(" " + t.get(comp, bin))
		}
		println()
	}
}

def colorTablesEqual = { t1, t2, inverted ->
	if (t1 == null && t2 == null) return true
	if (t1 == null || t2 == null) return false
	if (t1.getComponentCount() != t2.getComponentCount()) return false
	if (t1.getLength() != t2.getLength()) return false
	for (comp = 0; comp < t1.getComponentCount(); comp++) {
		for (bin = 0; bin < t1.getLength(); bin++) {
			index = inverted ? t1.getLength() - bin - 1 : bin
			if (t1.get(comp, bin) != t2.get(comp, index)) return false
		}
	}
	return true
}

// Load color tables
colorTables = [:]
for (entry in lut.findLUTs().entrySet()) {
	colorTables[entry.getKey()] = lut.loadLUT(entry.getValue())
}

println("== Available color tables ==")
for (entry in colorTables.entrySet()) {
	name = entry.getKey()
	colorTable = entry.getValue()
	println(name)
	if (verbose) printColorTable(colorTable)
}

println()
println("== Active image color tables ==")
channelTables = dv.getColorTables()
for (c = 0; c < channelTables.size(); c++) {	
	print("Channel #${c}")
	if (verbose) {
		println()
		printColorTable(channelTables[c])
	}
	for (entry in colorTables.entrySet()) {
		name = entry.getKey()
		colorTable = entry.getValue()
		if (colorTablesEqual(channelTables[c], colorTable, false)) {
			println(" --> MATCH: ${name}")
		}
		else if (colorTablesEqual(channelTables[c], colorTable, true)) {
			println(" --> MATCH: ${name} (inverted)")
		}
	}
}