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diff --git a/src/ipa/raspberrypi/controller/denoise_algorithm.hpp b/src/ipa/raspberrypi/controller/denoise_algorithm.hpp
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+++ b/src/ipa/raspberrypi/controller/denoise_algorithm.hpp
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+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2021, Raspberry Pi (Trading) Limited
+ *
+ * denoise.hpp - Denoise control algorithm interface
+ */
+#pragma once
+
+#include "algorithm.hpp"
+
+namespace RPiController {
+
+enum class DenoiseMode { Off, ColourOff, ColourFast, ColourHighQuality };
+
+class DenoiseAlgorithm : public Algorithm
+{
+public:
+	DenoiseAlgorithm(Controller *controller) : Algorithm(controller) {}
+	// A Denoise algorithm must provide the following:
+	virtual void SetMode(DenoiseMode mode) = 0;
+};
+
+} // namespace RPiController