-int jpeg_save(unsigned char*data, int width, int height, int quality, const char*filename);
-int jpeg_save_gray(unsigned char*data, int width, int height, int quality, const char*filename);
-int jpeg_save_to_file(unsigned char*data, int width, int height, int quality, FILE*fi);
-int jpeg_save_to_mem(unsigned char*data, int width, int height, int quality, unsigned char*dest, int destsize);
-int jpeg_load(const char*filename, unsigned char**dest, int*width, int*height);
-int jpeg_load_from_mem(unsigned char*_data, int _size, unsigned char**dest, int*width, int*height);
-void jpeg_get_size(const char *fname, int *width, int *height);
+int jpeg_save(unsigned char*data, unsigned int width, unsigned int height, int quality, const char*filename);
+int jpeg_save_gray(unsigned char*data, unsigned int width, unsigned int height, int quality, const char*filename);
+int jpeg_save_to_file(unsigned char*data, unsigned int width, unsigned int height, int quality, FILE*fi);
+int jpeg_save_to_mem(unsigned char*data, unsigned int width, unsigned int height, int quality, unsigned char*dest, int destsize);
+int jpeg_load(const char*filename, unsigned char**dest, unsigned int*width, unsigned int*height);
+int jpeg_load_from_mem(unsigned char*_data, int _size, unsigned char**dest, unsigned int*width, unsigned int*height);
+void jpeg_get_size(const char *fname, unsigned int *width, unsigned int *height);