First commit

exif2csv.rb

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+#!/usr/bin/env ruby
+
+# == Summary
+#   Generates a exifs.csv file from JPEGs in a directory
+#   and subdirectories.
+#
+# == Usage
+#   ./exif2csv.rb [path_to_images]
+#
+#   If [path_to_images] is not entered, program will browse
+#   subfolders.
+#
+# == Version History
+#   v0.0.2 - current
+#   v0.0.1 - 2010/08/27
+#
+# == Issues
+#   - Includes empty lines for JPEGs with no exifs
+
+require 'csv'
+require 'rubygems'
+require 'mini_exiftool'
+
+class Exif2CSV
+  @@header = ['FocalLength', 'Aperture', 'ExposureTime', 'ISO', 'Lens']
+
+  def self.generate_csv(directory)
+    CSV.open('exifs.csv', 'wb') do |csv|
+      csv << @@header 
+      Exif2CSV.get_images(directory).each do |image|
+        csv << Exif2CSV.read_exifs(image)
+      end
+    end
+  end
+
+  private
+  def self.get_images(directory)
+    Dir.glob(File.join(directory,'**','*.jpg'), File::FNM_CASEFOLD)
+  end
+  def self.read_exifs(photo)
+    exifs = MiniExiftool.new photo
+    exifs.to_hash.values_at(*@@header)
+  end
+end
+
+if ARGV.empty?
+  Exif2CSV.generate_csv '.'
+else
+  Exif2CSV.generate_csv ARGV[0]
+end