Discrete Fourier Transform for Gem

svn path=/trunk/externals/pix_opencv/; revision=11834

1 files changed, 88 insertions, 0 deletions

diff --git a/pix_opencv_dft.h b/pix_opencv_dft.h
new file mode 100755
index 0000000..a3c4a08
--- /dev/null
+++ b/pix_opencv_dft.h
@@ -0,0 +1,88 @@
+/*-----------------------------------------------------------------
+LOG
+    GEM - Graphics Environment for Multimedia
+
+    Change pix to greyscale
+
+    Copyright (c) 1997-1999 Mark Danks. mark@danks.org
+    Copyright (c) Günther Geiger. geiger@epy.co.at
+    Copyright (c) 2001-2002 IOhannes m zmoelnig. forum::für::umläute. IEM. zmoelnig@iem.kug.ac.at
+    Copyright (c) 2002 James Tittle & Chris Clepper
+    For information on usage and redistribution, and for a DISCLAIMER OF ALL
+    WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
+
+-----------------------------------------------------------------*/
+
+#ifndef INCLUDE_PIX_OPENCV_DISTRANS_H_
+#define INCLUDE_PIX_OPENCV_DISTRANS_H_
+
+#include "Base/GemPixObj.h"
+
+#ifndef _EiC
+#include "cv.h"
+#endif
+
+/*-----------------------------------------------------------------
+-------------------------------------------------------------------
+CLASS
+    pix_opencv_dft
+    
+    Change pix to greyscale
+
+KEYWORDS
+    pix
+    
+DESCRIPTION
+   
+-----------------------------------------------------------------*/
+class GEM_EXTERN pix_opencv_dft : public GemPixObj
+{
+    CPPEXTERN_HEADER(pix_opencv_dft, GemPixObj)
+
+    public:
+
+	//////////
+	// Constructor
+    	pix_opencv_dft();
+    	
+    protected:
+    	
+    	//////////
+    	// Destructor
+    	virtual ~pix_opencv_dft();
+
+    	//////////
+    	// Do the processing
+    	virtual void 	processRGBAImage(imageStruct &image);
+    	virtual void 	processRGBImage(imageStruct &image);
+	virtual void 	processYUVImage(imageStruct &image);
+    	virtual void 	processGrayImage(imageStruct &image); 
+
+        int comp_xsize;
+        int comp_ysize;
+        int x_calculate;
+        int dft_M;
+        int dft_N;
+
+    private:
+    
+    	//////////
+    	// Static member functions
+    	static void 	calculateCallback(void *data);
+        static void     shiftDFT(CvArr*, CvArr*);
+
+	// The output and temporary images
+        IplImage  *rgb;
+        IplImage  *rgba;
+        IplImage  *gray;
+        IplImage  *input_re;
+        IplImage  *input_im;
+        IplImage  *input_co;
+        CvMat     *dft_A;
+        IplImage  *image_re;
+        IplImage  *image_im;
+        IplImage  *image_mout;
+	
+};
+
+#endif	// for header file