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diff --git a/color.h b/color.h
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+/*********************************************************************
+ * kd-forest                                                         *
+ * Copyright (C) 2014 Tavian Barnes <tavianator@tavianator.com>      *
+ *                                                                   *
+ * This program is free software. It comes without any warranty, to  *
+ * the extent permitted by applicable law. You can redistribute it   *
+ * and/or modify it under the terms of the Do What The Fuck You Want *
+ * To Public License, Version 2, as published by Sam Hocevar. See    *
+ * the COPYING file or http://www.wtfpl.net/ for more details.       *
+ *********************************************************************/
+
+#ifndef COLOR_H
+#define COLOR_H
+
+#include "kd-forest.h"
+#include <stdint.h>
+
+void color_unpack(uint8_t pixel[3], uint32_t color);
+
+// Use RGB coordinates
+void color_set_RGB(double coords[3], uint32_t color);
+// Use CIE L*a*b* coordinates
+void color_set_Lab(double coords[3], uint32_t color);
+// Use CIE L*u*v* coordinates
+void color_set_Luv(double coords[3], uint32_t color);
+
+#endif // COLOR_H