function?[databasehandle]?=?add_descriptors_to_database（?im?pos?scale?orient?desc?existing_database?）

%?[database]?=?add_descriptors_to_database（?im?pos?orient?scale?desc?existing_database?）
%
%?Add?an?image?and?its?descriptors?to?a?database?or?create?a?new?database?if
%?one?is?not?specified.
%?
%?Input:
%?im?-?the?image.
%?pos?orient?scale?desc?-?keypoint?information?from?the?SIFT?function.
%?existing_database?-?database?to?add?the?descriptors?to.??If?omitted?a?
%???new?database?is?created.
%
%?Output:
%?database?-?the?database?structure.
%?handle?-?the?integer?handle?of?the?descriptor?block?in?the?database.
%
%?Thomas?F.?El-Maraghi
%?May?2004

if?exist（‘existing_database‘‘var‘）
???database?=?existing_database;
else
???database?=?empty_descriptor_database;
end

database.num_im?=?database.num_im?+?1;
database.im{database.num_im}?=?im;
database.index?=?[database.index;?database.num_im*ones（size（pos1）1）];
if?nargout?==?2
???handle?=?database.num_im;
end

database.pos?=?[database.pos;?pos];
database.scale?=?[database.scale;?scale];
database.orient?=?[database.orient;?orient];
database.desc?=?[database.desc;?desc];

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-06-03?15:40??SIFT\
?????文件?????????642??2009-01-06?21:22??SIFT\gaussian_filter.m
?????目錄???????????0??2019-06-03?15:41??__MACOSX\
?????目錄???????????0??2019-06-03?15:41??__MACOSX\SIFT\
?????文件?????????212??2009-01-06?21:22??__MACOSX\SIFT\._gaussian_filter.m
?????文件????????1131??2009-01-06?21:24??SIFT\find_nearest_neighbours.m
?????文件?????????212??2009-01-06?21:24??__MACOSX\SIFT\._find_nearest_neighbours.m
?????文件????????1148??2009-01-06?21:23??SIFT\add_descriptors_to_database.m
?????文件?????????212??2009-01-06?21:23??__MACOSX\SIFT\._add_descriptors_to_database.m
?????文件???????25889??2019-06-03?15:28??SIFT\matlab瀹炵幇sift鎻愬彇鐗瑰緛鐐?rar
?????文件?????????671??2019-06-03?15:28??__MACOSX\SIFT\._matlab瀹炵幇sift鎻愬彇鐗瑰緛鐐?rar
?????文件????????2505??2009-01-06?21:26??SIFT\imWarpAffine.m
?????文件?????????212??2009-01-06?21:26??__MACOSX\SIFT\._imWarpAffine.m
?????文件????????1189??2009-01-06?21:27??SIFT\read_keypoint_file.m
?????文件?????????212??2009-01-06?21:27??__MACOSX\SIFT\._read_keypoint_file.m
?????文件????????3578??2009-01-06?21:25??SIFT\fit_robust_affine_transform.m
?????文件?????????212??2009-01-06?21:25??__MACOSX\SIFT\._fit_robust_affine_transform.m
?????文件?????????856??2008-12-25?10:34??SIFT\write_keypoint_file.m
?????文件?????????212??2008-12-25?10:34??__MACOSX\SIFT\._write_keypoint_file.m
?????文件????????2703??2008-12-25?10:34??SIFT\SIFT_from_cache.m
?????文件?????????212??2008-12-25?10:34??__MACOSX\SIFT\._SIFT_from_cache.m
?????文件???????12343??2009-03-05?21:32??SIFT\tutorial.m
?????文件?????????212??2009-03-05?21:32??__MACOSX\SIFT\._tutorial.m
?????文件????????1573??2009-01-07?10:09??SIFT\pgmread.m
?????文件?????????212??2009-01-07?10:09??__MACOSX\SIFT\._pgmread.m
?????文件?????????442??2008-12-25?10:34??SIFT\get_linear_index.m
?????文件?????????212??2008-12-25?10:34??__MACOSX\SIFT\._get_linear_index.m
?????文件?????????492??2008-12-25?10:34??SIFT\resizeImageFig.m
?????文件?????????212??2008-12-25?10:34??__MACOSX\SIFT\._resizeImageFig.m
?????文件????????7690??2009-01-06?21:26??SIFT\hough.m
?????文件?????????212??2009-01-06?21:26??__MACOSX\SIFT\._hough.m
............此處省略11個文件信息