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diff --git a/src/ipa/raspberrypi/controller/rpi/black_level.hpp b/src/ipa/raspberrypi/controller/rpi/black_level.hpp
new file mode 100644
index 00000000..5d74c6da
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+++ b/src/ipa/raspberrypi/controller/rpi/black_level.hpp
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2019, Raspberry Pi (Trading) Limited
+ *
+ * black_level.hpp - black level control algorithm
+ */
+#pragma once
+
+#include "../algorithm.hpp"
+#include "../black_level_status.h"
+
+// This is our implementation of the "black level algorithm".
+
+namespace RPi {
+
+class BlackLevel : public Algorithm
+{
+public:
+	BlackLevel(Controller *controller);
+	char const *Name() const override;
+	void Read(boost::property_tree::ptree const &params) override;
+	void Prepare(Metadata *image_metadata) override;
+
+private:
+	double black_level_r_;
+	double black_level_g_;
+	double black_level_b_;
+};
+
+} // namespace RPi