bayer.h

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#ifndef __BAYER_H__
#define __BAYER_H__

typedef enum {
        BAYER_TILE_RGGB = 0,                    
        BAYER_TILE_GRBG = 1,                    
        BAYER_TILE_BGGR = 2,                    
        BAYER_TILE_GBRG = 3,                    
        BAYER_TILE_RGGB_INTERLACED = 4,         
        BAYER_TILE_GRBG_INTERLACED = 5,         
        BAYER_TILE_BGGR_INTERLACED = 6,         
        BAYER_TILE_GBRG_INTERLACED = 7,         
} BayerTile;

int gp_bayer_expand (unsigned char *input, int w, int h, unsigned char *output,
                     BayerTile tile);
int gp_bayer_decode (unsigned char *input, int w, int h, unsigned char *output,
                     BayerTile tile);
int gp_bayer_interpolate (unsigned char *image, int w, int h, BayerTile tile);
/*
 * The following two functions use an alternative procedure called Adaptive
 * Homogeneity-directed demosaicing instead of the standard bilinear 
 * interpolation with basic edge-detection method used in the previous two 
 * functions. To use or test this method of Bayer interpolation, just use 
 * gp_ahd_decode() in the same way and in the same place as gp_bayer_decode()
 * is used.
 */

int gp_ahd_decode (unsigned char *input, int w, int h, unsigned char *output,
                     BayerTile tile);
int gp_ahd_interpolate (unsigned char *image, int w, int h, BayerTile tile);

#endif /* __BAYER_H__ */