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diff --git a/WCudaMSE/BilatTools_CPP/src/core/tools/header/namespace_cpu/ColorTools_CPU.h b/WCudaMSE/BilatTools_CPP/src/core/tools/header/namespace_cpu/ColorTools_CPU.h
new file mode 100755
index 0000000..728e9d2
--- /dev/null
+++ b/WCudaMSE/BilatTools_CPP/src/core/tools/header/namespace_cpu/ColorTools_CPU.h
@@ -0,0 +1,103 @@
+#ifndef COLOR_TOOLS_CPU_H
+#define COLOR_TOOLS_CPU_H
+
+#include "cudaType_CPU.h"
+
+/**
+ * The two methode HSB_TO_RGB and RGB_TO_HSB are from http://www.easyrgb.com/index.php?X=MATH&H=21#text21
+ */
+namespace cpu
+    {
+    class ColorTools
+	{
+	public:
+
+	    /*--------------------------------------*\
+	   |*		  HSB_TO_RVB     		*|
+	     \*-------------------------------------*/
+
+	    /**
+	     * Convertir une couleur HSB en RVB !
+	     * H,S,B 	in [0,1]
+	     * R,V,B 	in [0,255]
+	     */
+	    static void HSB_TO_RVB(const float3& hsb01, uchar4* ptrRVBA);
+
+	    /**
+	     * Convertir une couleur HSB en RGB !
+	     * H,S,B in [0,1]
+	     * R,G,B in [0,255]
+	     */
+	    static void HSB_TO_RVB(float h01, uchar4* ptrRVBA);
+
+	    /**
+	     * Convertir une couleur HSB en RGB !
+	     * H,S,B in [0,1]
+	     * R,G,B in [0,255]
+	     */
+	    static void HSB_TO_RVB(float h01, float s01, float b01, uchar4* ptrRVBA);
+
+	    /**
+	     * Conversion HSB => RVB
+	     * Inputs :
+	     * 	H,S,B in [0,1]
+	     * Outputs :
+	     * 	R,V,B in [0,255]
+	     */
+	    static void HSB_TO_RVB(const float H, const float S, const float V, unsigned char *ptrR, unsigned char *ptrG, unsigned char *ptrB);
+
+	    /*--------------------------------------*\
+	   |*		 RGB_TO_HSV  		*|
+	     \*-------------------------------------*/
+
+	    /**
+	     * Conversion RGB => HSB
+	     * Inputs :
+	     * 	R,G,B in [0,255]
+	     * Outpus :
+	     * 	H,S,B in [0,1]
+	     */
+	    static void RGB_TO_HSB(const unsigned char R, const unsigned char G, const unsigned char B, float &H, float &S, float &V);
+
+	    /*--------------------------------------*\
+	  |*		 int 			   *|
+	     \*-------------------------------------*/
+
+	    /**
+	     * Conversion HSB => RGBA + toIntRGBA
+	     * Inputs :
+	     * 	h01,b01,b01 in [0,1]
+	     * Outpus :
+	     * 	intRGBA cod� sur 32 bits, chaque composante (a,r,g,b) �tant cod�e sur 4 bits
+	     * 	intRGBA cod�e :  0xAARRGGBB
+	     */
+	    static int HSB_TO_IntRGBA(float h01, float s01, float b01, float a01 = 0);
+
+	    /**
+	     * Conversion (r,g,b,a) => intRGBA
+	     * Inputs :
+	     * 	r,g,b,a in [0,255]
+	     * Outputs :
+	     * 	intRGBA cod� sur 32 bits, chaque composante (a,r,g,b) �tant cod�e sur 4 bits
+	     * 	intRGBA cod�e :  0xAARRGGBB
+	     */
+	    static int toIntRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a = 0);
+
+	    /**
+	     * see toIntRGBA(unsigned char r,  unsigned char g,  unsigned char b,  unsigned char a = 0)
+	     */
+	    static int toIntRGBA(float r01, float g01, float b01, float a01 = 0);
+
+	    /**
+	     * Inputs :
+	     * 	intRGBA cod� sur 32 bits, chaque composante (a,r,g,b) �tant cod�e sur 4 bits
+	     * 	intRGBA cod�e :  0xAARRGGBB
+	     * Outputs :
+	     * 	r,g,b,a in [0,255]
+	     */
+	    static void fromIntRGBA(const int rgb, unsigned char &r, unsigned char &g, unsigned char &b, unsigned char &a);
+
+	};
+    }
+
+#endif