int original_width; /* original image file width */
int original_height; /* original image file height */
boolean contains_small_images; /* set after adding small images */
boolean scaled_up; /* set after scaling up */
int original_width; /* original image file width */
int original_height; /* original image file height */
boolean contains_small_images; /* set after adding small images */
boolean scaled_up; /* set after scaling up */