Is it possible to get all photos by a persons name through the Picasa Web Albums Data API?
All examples I can find, shows开发者_运维技巧 how to get photos by an albumid.
You can request a list of the most recent photos, with a very high value for max-results.
I'm not sure if you are using the .NET API Client Library, but if so, an example is here: http://code.google.com/apis/picasaweb/docs/1.0/developers_guide_dotnet.html#ListRecentPhotos
Use query.NumberToRetrieve to set the value for max-results.
If you are not using the .NET Client Library, an example using HTTP protocol can be found here: http://code.google.com/apis/picasaweb/docs/2.0/developers_guide_protocol.html#ListRecentPhotos
You can retrieve facial recognition data from the Picasa Web API through a (currently) undocumented API URL that is used by the Picasa desktop application. More info here:
http://klick.com/pharma/blog/2011/09/retrieving-face-tag-data-from-the-picasa-web-api/
by setting "default" that mean retrieving current user with that code you can retrive the user photos in specific album
PhotoQuery query = new PhotoQuery(PicasaQuery.CreatePicasaUri("default", albumId));
PicasaFeed feed = picasaService.Query(query);
foreach (var entry in feed.Entries)
{
PhotoAccessor photoAccessor = new PhotoAccessor((PicasaEntry)entry);
Photo photo = new Photo();
photo.Title = photoAccessor.PhotoTitle;
photo.Summary = photoAccessor.PhotoSummary;
photo.MediaUri = entry.Content.AbsoluteUri;
photo.Id = photoAccessor.Id;
photo.AlbumId = photoAccessor.AlbumId;
photos.Add(photo);
}
If you know the subjectid then using an RSS link you can get a feed of ALL images for that user regardless of albums. The link is:
http://picasaweb.google.com/data/feed/base/user/PICASA_USERNAME?alt=rss&kind=photo&subjectids=SOME_BIG_LONG_STRING_OF_CHARACTERS
Also, you can find the subjectids by going to each person on PWA and clicking the RSS link at the bottom of the page.
I am stil trying to find a way to get all subjectids without a manual lookup.
Source: http://credentiality2.blogspot.com/2010/02/picasa-gdata-api-and-face-recognition.html
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