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PWA uses an "unlisted number" approach for URLs for private photo albums. This enables a user to email a private album's URL to anyone s/he wants; the recipient can view the album without having to create a user account - this is done via an "authentication key" that's needed to be appended to the URL for the album to be shown. The Picasa help files say that private albums are not searchable by anyone except the user.
PWA uses an "unlisted number" approach for URLs for private photo albums. This enables a user to email a private album's URL to anyone s/he wants; the recipient can view the album without having to create a user account - this is done via an "authentication key" that's needed to be appended to the URL for the album to be shown. The Picasa help files say that private albums are not searchable by anyone except the user.


No ads are shown on Picasa Web Albums, in either free or paid accounts. The Terms of Service<ref>[http://picasa.google.com/web/tos.html Picasa: Terms of Service]</ref> permit Google to use the uploaded photos to display on the website or via RSS feeds, and also for promoting Google services royalty-free.
Ads are shown on the free Picasa Web Albums accounts. The Terms of Service<ref>[http://picasa.google.com/web/tos.html Picasa: Terms of Service]</ref> permit Google to use the uploaded photos to display on the website or via RSS feeds, and also for promoting Google services royalty-free.


Picasa Web Albums was first leaked on June 6, 2006.<ref>[http://blogoscoped.com/archive/2006-06-07-n12.html Google Picasa Web Albums Coming?]</ref> When introduced, it came with 250&nbsp;MB free space. On March 7, 2007, it was upgraded to 1&nbsp;GB. Users can also rent additional storage space (shared between Google services such as [[Gmail]] and Picasa Web Albums) from 20 GB to 16 TB. <ref>[http://picasa.google.com/support/bin/answer.py?answer=39567&topic=10766 Picasa Help Center - purchasing additional storage]</ref>
Picasa Web Albums was first leaked on June 6, 2006.<ref>[http://blogoscoped.com/archive/2006-06-07-n12.html Google Picasa Web Albums Coming?]</ref> When introduced, it came with 250&nbsp;MB free space. On March 7, 2007, it was upgraded to 1&nbsp;GB. Users can also rent additional storage space (shared between Google services such as [[Gmail]] and Picasa Web Albums) from 20 GB to 16 TB. <ref>[http://picasa.google.com/support/bin/answer.py?answer=39567&topic=10766 Picasa Help Center - purchasing additional storage]</ref>

Revision as of 19:28, 20 December 2009

Picasa
Original author(s)Idealab
Developer(s)Google
Stable release
Microsoft Windows: 3.6 Build 95.25 / December 15, 2009; 14 years ago (2009-12-15) [1]
Operating systemMicrosoft Windows, Linux, Mac OS X
TypeDigital photo organizer
Licensefreeware
Websitehttp://picasa.google.com/

Picasa is a software application for organizing and editing digital photos, originally created by Idealab and owned by Google since 2004.[2] "Picasa" is a blend of the name of Spanish painter Pablo Picasso, the phrase mi casa for "my house" and "pic" for pictures (personalized art).[2][3] In July 2004, Google acquired Picasa and began offering it as a free download.[2][3] At the time of the acquisition, the company's management team consisted of Lars Perkins as CEO, Mike Herf as CTO, and Dan Engel as VP Market Development.

Native applications for Windows XP, Windows Vista and Mac OS X are available through Google Labs. For Linux Google has bundled Wine with the Windows version to create an installation package rather than write a native Linux version. For Windows 98 and Windows Me, only an older version is available. There is also an iPhoto plugin or a stand-alone program for uploading photos available for Mac OS X 10.4 and later.

Features

Organization and editing

For organizing photos, Picasa has file importing and tracking features, as well as tags, facial recognition, and collections for further sorting. It also offers several basic photo editing functions, including color enhancement, red eye reduction and cropping. Other features include slide shows, printing and image timelines. Images can also be prepared for external use, such as for e-mailing or printing, by reducing file size and setting up page layouts. There is also integration with online photo printing services.

Keywords

Picasa uses picasa.ini files to keep track of keywords for each image. In addition to this, Picasa attaches IPTC keyword data to JPEG files, but not to any other file format. Keywords attached to JPEG files in Picasa can be read by other image library software like Adobe Photoshop Album, Adobe Bridge, digiKam, and iPhoto.

According to Picasa Readme[4], Picasa can parse XMP data. However, it cannot search local files for existing XMP keywords.

Searching

Picasa has a search bar that is always visible when viewing the library. Searches are live in that displayed items are filtered as you type. The search bar will search filenames, captions, tags, folder names, and other metadata.[5]

Picasa also supports boolean operators for searching in much the same way as Google's web search. All search terms are required by default (as with the operator "AND"), and images tagged with specified keywords can be excluded by using the hyphen (as in the boolean operator "NOT"). For example, searching for family children -friends will cause Picasa to display all images with the keywords "family" and "children", but which do not include the keyword "friends".

Picasa also has an experimental feature in the search bar where images can be searched for that contain certain colors with the "color:" operator.[6]

Viewing

Picasa has no separate view window. There is only an "edit view" with a viewing area. Fullscreen view is available in slideshow mode, by holding down the ctrl+alt keys while in "edit view", or by pressing the Alt Gr key. This feature is also available through the context menu of Windows Explorer, and provides a way to start the Picasa editor as well.

Backup

In Picasa 2 and earlier versions, changes to pictures made in Picasa overwrite the original file, but a backup version of the original is saved in a hidden folder named "Originals" in the same folder as the original picture.

In Picasa 3, changes to pictures made in Picasa are saved to a hidden file picasa.ini in the same folder as the original picture. This allows multiple edits to be performed without significant deterioration of image quality when using lossy formats like JPEG. Viewing the picture in Picasa or using the Picasa Photo Viewer will apply modifications on the fly, whereas viewing through other programs (such as Windows XP's Photo and Fax Viewer) will display the original image. Changes can also be made permanent using the "Save" function, where the original file is backed up and the modified version is written in its place, similar to version 2.

Face recognition

On 15 August 2006, Google announced it had acquired Neven Vision whose technology can be used to search for features within photos such as people or buildings. Google applied this technology for face recognition and this functionality was launched on Picasa Web Albums on the 2nd of September 2008.[7]

Neven Vision incorporates several patents[8] specifically centered around face recognition from digital photo and video images. Neven Vision's technology was among the top finishers in both the FERET 1997 and FRVT 2002 independent tests comparing the world's best face recognition technologies.[citation needed]

Geotagging

Since June 2007 Picasa can write geographic coordinates to Exif metadata, thus geotagging an image. Google Earth must also be installed to do this. This feature is not available for the Mac OS X version.

Since version 3.5 of Picasa, Google Earth is not needed. Geotagging may be done directly inside Picasa, using a more practical Google Maps component.

Other Picasa applications

Picasa Web Albums

Picasa Web Albums (PWA) is a photo sharing web site from Google, often compared to Flickr and similar sites.

It allows users with accounts at Google to store and share 1 GB of photos for free.

Users may upload pictures through a variety of ways; via the PWA web interface on supported browsers[9], Picasa 2.5.0 or later[10] on Microsoft Windows, using the Exporter for iPhoto, the Aperture to Picasa Web Albums plug-in, Uploader on Mac OS X,[11] or F-Spot on Linux. In both paid and free accounts, the actual resolution of the photo is maintained (even though a smaller resolution photo may be displayed by the web interface), and the original photo can be downloaded.

PWA uses an "unlisted number" approach for URLs for private photo albums. This enables a user to email a private album's URL to anyone s/he wants; the recipient can view the album without having to create a user account - this is done via an "authentication key" that's needed to be appended to the URL for the album to be shown. The Picasa help files say that private albums are not searchable by anyone except the user.

Ads are shown on the free Picasa Web Albums accounts. The Terms of Service[12] permit Google to use the uploaded photos to display on the website or via RSS feeds, and also for promoting Google services royalty-free.

Picasa Web Albums was first leaked on June 6, 2006.[13] When introduced, it came with 250 MB free space. On March 7, 2007, it was upgraded to 1 GB. Users can also rent additional storage space (shared between Google services such as Gmail and Picasa Web Albums) from 20 GB to 16 TB. [14]

Hello

Hello by Google's Picasa was a free computer program that enabled users to send images across the Internet and publish them to their blogs. It was similar to an instant messaging program because it allowed users to send text, but Hello focused on digital photographs.[15] Users can opt to view the same pictures as their friends in real-time. One of the advantages claimed at the website is that photos could be shared through firewalls.

Hello's service was canceled at the end of 2006, and users were instructed to try the Picasa 'Blog This' functionality for uploading pictures to their blogs. According to the official website,[15] the Hello project was shut down on June 11, 2008.

Version history

Windows

There are no versions of Picasa for Windows 95 or NT. The latest version offered for Windows 98/ME is 2.0.0 (build 18.84).[16][17] The latest version offered for Windows 2000 is 2.7 (build 37.64).[16][18] Newer versions are for Windows XP, Vista and 7 only.

Linux

As from about early June 2006, Linux versions (2.2.2820-5) became available as free downloads for most distributions of the Linux operating system. It is not a native Linux program but an adapted Windows version that uses the Wine libraries.[19]

Google announced that there will be no Linux version for 3.5, due to low adoption.[20]

Mac OS X

On January 5, 2009, Google released a beta version of Picasa for Mac (Intel-based Macs only). Also, a plugin is available for iPhoto to upload to the Picasa Web Albums hosting service. There is also a standalone Picasa Web Albums uploading tools for OS X 10.4 or later.[21]

See also

Notes

  1. ^ "System Requirements and Compatibility : Release Notes - Picasa Help".
  2. ^ a b c "Google Picasa", Obsessable, 2009 (see: References).
  3. ^ a b "Google is watching..", Digital Journal (see: References).
  4. ^ "Picasa Readme".
  5. ^ "Search and Locate: Search by keyword, filter, or color". Retrieved 12 November 2009.
  6. ^ "Feeling Blue? Search for Photos Matching Your Mood".
  7. ^ "Introducing Picasa 3.0 (and big changes for Picasa Web Albums)".
  8. ^ "Google, Neven Vision & Image Recognition".
  9. ^ Creating New Albums: Upload using Picasa Web Albums, Picasa Help
  10. ^ Picasa Web Albums
  11. ^ Picasa Web Albums
  12. ^ Picasa: Terms of Service
  13. ^ Google Picasa Web Albums Coming?
  14. ^ Picasa Help Center - purchasing additional storage
  15. ^ a b Hello : Welcome[dead link]
  16. ^ a b Download, Install, and Uninstall: Picasa for Windows 98, ME and 2000
  17. ^ http://dl.google.com/picasa/picasa2-setup-1884.exe, 3.3 MB
  18. ^ http://dl.google.com/picasa/picasaweb-current-setup.exe, 5.8 MB
  19. ^ About Picasa for Linux
  20. ^ Google Releases Picasa 3.5
  21. ^ Introducing Picasa for Mac (at Macworld!), 1/05/2009 02:25:00 PM, Official Google Blog

References

Retrieved from "https://en.wikipedia.org/w/index.php?title=Picasa&oldid=332900221"