Hi, I am using the Picasa web albums API to upload pictures to an album. I resize the pictures so that they do not count against my storage limit. However, when resizing the picture the EXIF information is lost, specifically the date on which the photo was taken and ISO, camera make, model etc.
So my plan was to retrieve the EXIF data from the original picture, resize it and then update the resized picture with the EXIF data (only the relevant data such as date, make, model). I cannot get this to work. I can read EXIF data perfectly well (using metadata-extractor or commons-imaging), but everything I set on the resized picture is discarded when the picture is uploaded. I have tried to set the EXIF data before the picture is uploaded, as per https://developers.google.com/picasa-web/docs/2.0/developers_guide_java#UploadPhotoWithMetadata: URL albumPostUrl = new URL("https://picasaweb.google.com/data/feed/api/user/*username*/albumid/*albumid*";); PhotoEntry myPhoto = new PhotoEntry(); myPhoto.setTitle(new PlainTextConstruct("Puppies FTW")); myPhoto.setDescription(new PlainTextConstruct("Puppies are the greatest.")); myPhoto.setClient("myClientName"); MediaFileSource myMedia = new MediaFileSource(new File("/home/liz/puppies.jpg"), "image/jpeg"); myPhoto.setMediaSource(myMedia); ExifTags tags = new ExifTags(); // set the tags based on saved information from the original picture tags.setCameraMake(make); tags.setCameraModel(model); //etc // myPhoto.setExifTags(tags); PhotoEntry returnedPhoto = myService.insert(albumPostUrl, myPhoto); This does not work, all EXIF data is discarded and the date of the picture is simply the upload date. I then tried to update the photo as per https://developers.google.com/picasa-web/docs/2.0/developers_guide_java#UpdatePhotos: ExifTags tags = new ExifTags(); // set the tags based on saved information from the original picture tags.setCameraMake(make); tags.setCameraModel(model); //etc // myPhoto.setExifTags(tags); myPhoto.setGeoLocation(37.7733, -122.4178); myPhoto.update(); This does not work either, the Geo location from the example is updated though. What am I missing here? I am absolutely sure that the Exif tags are set on the picture, but the information seems to simply get discarded? When I upload an original picture, all the EXIF data is shown just fine. Thanks, Geert -- You received this message because you are subscribed to the Google Groups "Google Picasa Web Albums API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-picasa-data-api. For more options, visit https://groups.google.com/d/optout.
