EXIF data discovery

Interesting examples from Harley Turan of how to filter your own mobile phone photos based on the EXIF metadata. Page starts with introduction to what EXIF is and then goes deeper to what kind of knowledge can be discovered by analysing image metadata. Harley shows how to read image metadata with ExifTool and how to import that data to a new SQLite database on your own computer.

Tutorial then goes to a practical code snippets combined with examples of what kind of photos were found with the SQL queries. They then show a few experiments in photo geolocation and Augmented Reality based user interfaces. There are also a bit of self-reflection on what it means in practice if you give a direct access to 3rd party applications, that often analyse your mobile phone’s photo album (often without telling about it to a regular app user). There are good overall lessons in the article, both from technical and creative viewpoints.