Krptkn.PngExtractor (Кропоткин Framework v0.1.0) View Source

This module uses naive techniques to extract the metadata inside PNG files. It also uses Exexif if exif info is found inside the PNG file.

Link to this section Summary

Turns EXIF data into map. Uses Exexif.

Extracts EXIF metadata from a PNG buffer (compressed or not).

Turns EXIF data into map. Uses Exexif.

Returns a dictionary with EXIF data.

iex> Krptkn.PngExtractor.exifstr2map(data)
%{
  size: "160x160",
  "Created By Software": "Adobe Photoshop CC 2017 (Macintosh)",
}

Extracts EXIF metadata from a PNG buffer (compressed or not).

Returns a dictionary with EXIF data.

iex> Krptkn.PngExtractor.extract_from_png_buffer(binary_data)
%{
  size: "160x160",
  "Created By Software": "Adobe Photoshop CC 2017 (Macintosh)",
}