metacam
metacam extracts EXIF information from digital camera files, including JPEG images from cameras and mobile phones. It supports standard EXIF fields and vendor-specific extensions from Nikon, Olympus, Canon, and Casio.
Description
EXIF (Exchangeable Image File Format) is a standard for storing interchange information in image files, especially those using JPEG compression. Most digital cameras, including mobile phones, now use the EXIF format. The format is part of the DCF standard created by JEIDA to encourage interoperability between imaging devices.
In addition to the standard EXIF fields, MetaCam also supports vendor-specific extensions from Nikon, Olympus, Canon and Casio. This program is useful in forensics investigations, where extracting metadata from images can provide critical evidence such as timestamps, geolocation, camera details, and device-specific information.
MetaCam processes image files to parse and display this embedded metadata, aiding investigators in understanding the origin and context of digital images.
How It Works
metacam parses EXIF data embedded in JPEG image files, decoding both standard fields defined by the EXIF specification and proprietary vendor extensions from manufacturers like Nikon, Olympus, Canon, and Casio. It reads the interchange information stored in the file header, extracting tags related to camera settings, timestamps, and device specifics for output in human-readable or XML formats.
Installation
sudo apt install metacamFlags
Examples
metacam -hmetacam image.jpgmetacam -v image.jpgmetacam -a image.jpgmetacam -x image.jpgmetacam -v image1.jpg image2.jpgmetacam -a -x images/*.jpg