#ifndef PGM_H #define PGM_H #define BLANC 255 #define NOIR 0 typedef unsigned char pixel; extern void pgm_creer(size_t largeur, size_t hauteur); extern void pgm_liberer(); extern void pgm_initialiser(pixel couleur_de_fond); extern void pgm_ecrire_image(FILE *flot); extern pixel pgm_lire_pixel(size_t i, size_t j); extern void pgm_ecrire_pixel(size_t i, size_t j, pixel p); #endif /* PGM_H */