void image_alter_orientation(ImageWindow *imd, FileData *fd, AlterType type);
void image_set_desaturate(ImageWindow *imd, gboolean desaturate);
gboolean image_get_desaturate(ImageWindow *imd);
+void image_set_overunderexposed(ImageWindow *imd, gboolean overunderexposed);
+gboolean image_get_overunderexposed(ImageWindow *imd);
/* zoom */
void image_zoom_adjust(ImageWindow *imd, gdouble increment);