#ifndef IMAGE_H
#define IMAGE_H

/*- TAD:  Imagem: uma Imagem RGB ---------------*/
typedef struct image_imp * Image;        /* uma imagem  RGB  */  
typedef struct img_statistics_imp * ImgStatistics;
typedef struct sequence_imp * Sequence;  /* uma sequencia de imagens BGR */
typedef struct map_imp * Map;            /* uma imagem em ponto flutuante */

/*- Interface  imagem --------------*/
Image   imgCreate (int w, int h);
void    imgDestroy (Image img);
unsigned char* imgGetBuffer(Image img);
void    imgGetDimensions(Image img, int *w, int *h);
void    imgSetPixel(Image img, int x, int y, unsigned char r, unsigned char g, unsigned char b);
void    imgGetPixel(Image img, int x, int y, unsigned char *r, unsigned char *g, unsigned char *b);
void    imgDraw(Image img);
void    imgClear(Image img);
Image   imgReadTGA (char *filename);
int     imgWriteTGA(char *filename, Image img);
int     imgWriteBMP(char *filename, Image img);

int     writeRGBtoBMP(char *filename, int width, int height, unsigned char* imgSrc);

/*- Interface  statisticas --------------*/
ImgStatistics   imgStatisticsCreate (int w, int h);
void    imgStatisticsDestroy (ImgStatistics stat);
double* imgStatisticsGetBuffer(ImgStatistics stat);
void    imgStatisticsSetPixel(ImgStatistics img, int x, int y, double r, double g, double b);
void    imgStatisticsGetPixel(ImgStatistics img, int x, int y, double *r, double *g, double *b);

/* interface video */
Sequence        imgCreateSequence(int w, int h, int nframes);
void            imgDestroySequence (Sequence seq);
unsigned char * imgGetFrameBuffer(Sequence seq,  int frame_i);
Image           imgAverage(Sequence seq);
void			imgGetStatistics(Sequence seq, Image avg, ImgStatistics std_dev, ImgStatistics avg_norm, ImgStatistics norm_std_dev);
//ImgStatistics   imgStdDev(Sequence seq);
//ImgStatistics   imgNormAverage(Sequence seq);
//ImgStatistics   imgNormStdDev(Sequence seq);

#endif