JPEG Metadata Extractor

A command-line tool written in Rust that extracts metadata from JPEG images and outputs it as JSON files.

Features

• Extracts filesystem metadata (filename, size, created_time, modified_time)
• Extracts EXIF metadata (orientation, capture_time, camera_model, camera_serial)
• Processes multiple files in a single command
• Outputs JSON files in the same directory as input images
• Omits unavailable metadata fields from output

Usage

cargo run -- image1.jpg image2.jpg image3.jpg

Or after building:

./target/release/jpeg-metadata-extractor image1.jpg image2.jpg image3.jpg

Output

For each input file image.jpg, a corresponding image.json file will be created in the same directory containing the extracted metadata.

Example output:

{
  "filename": "CAM18839.jpg",
  "size": 1164980,
  "created_time": "2020-08-13T10:57:06.773358405Z",
  "modified_time": "2020-08-13T10:57:06.773358405Z",
  "orientation": 1,
  "capture_time": "2020-08-09T12:58:32",
  "camera_model": "EOS 5D Mark IV",
  "camera_serial": "025021000535"
}

Building

cargo build --release

Testing

cargo test

Dependencies

• kamadak-exif - EXIF data parsing
• serde & serde_json - JSON serialization
• chrono - Date/time handling
• clap - Command-line argument parsing