Displaying Exif Information from JPEG Images
Tutorial January 12th. 2007, 4:17pmHave you wondered how Flickr publishes the most popular cameras in their community? How does Flickr get the information about camera model, such as Nokia Sony Ericsson W810i or Nokia N73?
The answer to the questions above is Exif. According to Wikipedia:
Exchangeable image file format (official abbreviation Exif, not EXIF) is a specification for the image file format used by digital cameras…. The specification uses the existing JPEG, TIFF Rev. 6.0, and RIFF WAVE file formats, with the addition of specific metadata tags. It is not supported in JPEG 2000 or PNG.
Basically, Exif is metadata embedded into images captured with digital cameras, including camera phones. Not only camera model, Exif stores many other parameters, such as focal length, exposure time, aperture value and many more.
How can we view Exif information? Many photo management software, such as Google’s Picasa, and image viewer software, such as IrfanView (with additional plug-in), are able to display Exif information. The following screenshot shows Exif information from a picture taken with Nokia N73. Just for your information, I use IrfanView to display Exif information.
4 Responses to “Displaying Exif Information from JPEG Images”
Comments are disabled.
January 14th, 2007 at 7:15 pm
your description is so detailed that I want to have a try.and I do like to recommend one software that you can you to convert convert DWG to WMF, DXF to WMF, DWF to WMF file without AutoCAD?that is,
DWG to WMF Converter MX,http://www.qweas.com/download/graphics/image_converters/dwg_to_wmf_converter_mx.htm
have a good time!
February 1st, 2007 at 12:29 am
[...] of you, who read my other blog, Antony’s Mobile Blog, may feel de-javu. Yes… this tip, Viewing Exif Information from JPEG Images, is actually an old posting from my other blog. I decided to write the same posting here because I [...]
February 8th, 2007 at 9:43 am
They’re looking into it but I don’t think this data is current or accurate http://flickr.com/forums/help/33094/
February 8th, 2007 at 10:15 am
@Shawn: Thanks for the information. It looks like there is a bug in their system. Hope they will fix it soon.