/*****************************************************************************
 *	Date: June 19, 2008
 *----------------------------------------------------------------------------
 *	This C program is based on the following paper:
 *		T. Blu, P. Thevenaz, M. Unser,
 *			"Linear Interpolation Revitalized,"
 *			IEEE Transactions on Image Processing, vol. 13, no. 5, pp. 710-719,
 * 			May 2004.
 *----------------------------------------------------------------------------
 *	Philippe Thevenaz
 *	EPFL/STI/IMT/BIG/BM.4.137
 *	Station 17
 *	CH-1015 Lausanne VD
 *  Switzerland
 *----------------------------------------------------------------------------
 *	phone (CET):	+41(21)693.51.61
 *	fax:			+41(21)693.37.01
 *	RFC-822:		philippe.thevenaz@epfl.ch
 *	X-400:			/C=ch/A=400net/P=switch/O=epfl/S=thevenaz/G=philippe/
 *	URL:			http://bigwww.epfl.ch/
 *----------------------------------------------------------------------------
 *	This file is best viewed with 4-space tabs
 * (the bars separated by dots should be aligned with those separated by tabs)
 *  |...|...|...|...|...|...|...|...|...|...|...|...|...|...|...|...|...|...|
 *	|	|	|	|	|	|	|	|	|	|	|	|	|	|	|	|	|	|	|
 ****************************************************************************/

#define			BASIS_SHIFT \
				((double)(0.5 - sqrt(1.0 / 12.0)))

/*--------------------------------------------------------------------------*/
extern int		SamplesToCoefficients
				(
					float	*Image,		/* in-place processing */
					long	Width,		/* width of the image */
					long	Height		/* height of the image */
				);