linterp.h

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#ifndef _LINTERP_H_
#define _LINTERP_H_

typedef enum
{
    BOUNDARY_CONSTANT = 0,
    BOUNDARY_HSYMMETRIC = 1,
    BOUNDARY_WSYMMETRIC = 2
} boundaryhandling;

int LinScale2d(float *Dest, int DestWidth, float XStart, float XStep,
    int DestHeight, float YStart, float YStep,
    const float *Src, int SrcWidth, int SrcHeight, int NumChannels,
    float (*Kernel)(float), float KernelRadius, int KernelNormalize,
    boundaryhandling Boundary);

int FourierScale2d(float *Dest, int DestWidth, float XStart,
    int DestHeight, float YStart,
    const float *Src, int SrcWidth, int SrcHeight, int NumChannels,
    double PsfSigma, boundaryhandling Boundary);

int LinInterp2d(float *Dest, const float *Src, int SrcWidth, int SrcHeight,
    float *X, float *Y, int NumSamples,
    float (*Kernel)(float), float KernelRadius, int KernelNormalize,
    boundaryhandling Boundary);

int MakeScaleRotationGrid(float **X, float **Y, int *GridWidth,
    int *GridHeight, int SrcWidth, int SrcHeight, float Scale, float Theta);

#include "lprefilt.h"
#include "lkernels.h"

#endif /* _LINTERP_H_ */