diff --git a/include/hyperion/Hyperion.h b/include/hyperion/Hyperion.h
index 7d78ed18..4a41b1fc 100644
--- a/include/hyperion/Hyperion.h
+++ b/include/hyperion/Hyperion.h
@@ -21,6 +21,16 @@ class Hyperion : public QObject
 {
 	Q_OBJECT
 public:
+	enum Color
+	{
+		RED, GREEN, BLUE
+	};
+
+	enum Transform
+	{
+		THRESHOLD, GAMMA, BLACKLEVEL, WHITELEVEL
+	};
+
 	static LedString createLedString(const Json::Value& ledsConfig);
 
 	Hyperion(const Json::Value& jsonConfig);
@@ -33,6 +43,8 @@ public:
 
 	void setColors(int priority, std::vector<RgbColor> &ledColors, const int timeout_ms);
 
+	void setTransform(Transform transform, Color color, double value);
+
 	void clear(int priority);
 
 	void clearall();
diff --git a/libsrc/hyperion/Hyperion.cpp b/libsrc/hyperion/Hyperion.cpp
index 64c1db85..60e1c4dd 100644
--- a/libsrc/hyperion/Hyperion.cpp
+++ b/libsrc/hyperion/Hyperion.cpp
@@ -145,6 +145,45 @@ void Hyperion::setColors(int priority, std::vector<RgbColor>& ledColors, const i
 	}
 }
 
+void Hyperion::setTransform(Hyperion::Transform transform, Hyperion::Color color, double value)
+{
+	// select the transform of the requested color
+	ColorTransform * t = nullptr;
+	switch (color)
+	{
+	case RED:
+		t = _redTransform;
+		break;
+	case GREEN:
+		t = _greenTransform;
+		break;
+	case BLUE:
+		t = _blueTransform;
+		break;
+	default:
+		assert(false);
+	}
+
+	// set transform value
+	switch (transform)
+	{
+	case THRESHOLD:
+		t->setThreshold(value);
+		break;
+	case GAMMA:
+		t->setGamma(value);
+		break;
+	case BLACKLEVEL:
+		t->setBlacklevel(value);
+		break;
+	case WHITELEVEL:
+		t->setWhitelevel(value);
+		break;
+	default:
+		assert(false);
+	}
+}
+
 void Hyperion::clear(int priority)
 {
 	if (_muxer.hasPriority(priority))
diff --git a/libsrc/jsonserver/JsonClientConnection.cpp b/libsrc/jsonserver/JsonClientConnection.cpp
index 25fa7583..1bbcbf97 100644
--- a/libsrc/jsonserver/JsonClientConnection.cpp
+++ b/libsrc/jsonserver/JsonClientConnection.cpp
@@ -175,7 +175,41 @@ void JsonClientConnection::handleClearallCommand(const Json::Value &)
 
 void JsonClientConnection::handleTransformCommand(const Json::Value &message)
 {
-	handleNotImplemented();
+	const Json::Value & transform = message["transform"];
+
+	if (transform.isMember("threshold"))
+	{
+		const Json::Value & threshold = transform["threshold"];
+		_hyperion->setTransform(Hyperion::THRESHOLD, Hyperion::RED, threshold[0u].asDouble());
+		_hyperion->setTransform(Hyperion::THRESHOLD, Hyperion::GREEN, threshold[1u].asDouble());
+		_hyperion->setTransform(Hyperion::THRESHOLD, Hyperion::BLUE, threshold[2u].asDouble());
+	}
+
+	if (transform.isMember("gamma"))
+	{
+		const Json::Value & threshold = transform["gamma"];
+		_hyperion->setTransform(Hyperion::GAMMA, Hyperion::RED, threshold[0u].asDouble());
+		_hyperion->setTransform(Hyperion::GAMMA, Hyperion::GREEN, threshold[1u].asDouble());
+		_hyperion->setTransform(Hyperion::GAMMA, Hyperion::BLUE, threshold[2u].asDouble());
+	}
+
+	if (transform.isMember("blacklevel"))
+	{
+		const Json::Value & threshold = transform["blacklevel"];
+		_hyperion->setTransform(Hyperion::BLACKLEVEL, Hyperion::RED, threshold[0u].asDouble());
+		_hyperion->setTransform(Hyperion::BLACKLEVEL, Hyperion::GREEN, threshold[1u].asDouble());
+		_hyperion->setTransform(Hyperion::BLACKLEVEL, Hyperion::BLUE, threshold[2u].asDouble());
+	}
+
+	if (transform.isMember("whitelevel"))
+	{
+		const Json::Value & threshold = transform["whitelevel"];
+		_hyperion->setTransform(Hyperion::WHITELEVEL, Hyperion::RED, threshold[0u].asDouble());
+		_hyperion->setTransform(Hyperion::WHITELEVEL, Hyperion::GREEN, threshold[1u].asDouble());
+		_hyperion->setTransform(Hyperion::WHITELEVEL, Hyperion::BLUE, threshold[2u].asDouble());
+	}
+
+	sendSuccessReply();
 }
 
 void JsonClientConnection::handleNotImplemented()