1 files changed, 66 insertions, 0 deletions
diff --git a/nypl_recrop.rb b/nypl_recrop.rb
new file mode 100755
index 0000000..4ca1843
--- /dev/null
+++ b/nypl_recrop.rb
@@ -0,0 +1,66 @@
+#!/usr/bin/env ruby
+
+require 'json'
+require 'rest-client'
+require 'dimensions'
+
+NYPL_API_TOKEN = ENV["NYPL_API_TOKEN"]
+NYPL_AUTH = "Token token=\"#{NYPL_API_TOKEN}\""
+NYPL_ENDPOINT = "http://api.repo.nypl.org/api/v1/items"
+
+stereo_metadata = JSON.parse(RestClient.get("http://stereo.nypl.org/view/#{ARGV[0]}.json"))
+
+unless stereo_metadata['external_id'] == 0
+  abort('Image must be from NYPL collections.')
+end
+
+digital_id = stereo_metadata['digitalid'].upcase
+image_id = JSON.parse(RestClient.get("#{NYPL_ENDPOINT}/local_image_id/#{digital_id}", :Authorization => NYPL_AUTH))
+image_uuid = image_id['nyplAPI']['response']['uuid']
+image_captures = JSON.parse(RestClient.get("#{NYPL_ENDPOINT}/#{image_uuid}", :Authorization => NYPL_AUTH))
+
+matching_captures = image_captures['nyplAPI']['response']['capture'].select{|c| c['imageID'].upcase == digital_id}
+
+if matching_captures && matching_captures.length > 0
+  # capture_uuid = matching_captures[0]['uuid']
+  # capture_details = JSON.parse(RestClient.get("#{NYPL_ENDPOINT}/item_details/#{capture_uuid}", :Authorization => NYPL_AUTH))
+  highres_url = matching_captures[0]['highResLink']
+  lowres_url = stereo_metadata['url']
+
+  # download images
+  $stderr.puts "Downloading images..."
+  `wget -nc -O #{ARGV[0]}.jpg '#{lowres_url}'`
+  `wget -nc -O #{ARGV[0]}.tif '#{highres_url}'`
+
+  # calculate the crop for the original image using multiscale template matching
+  $stderr.puts "Calculating crop..."
+  crop_params = `./template_match_multiscale.py --template #{ARGV[0]}.jpg --image #{ARGV[0]}.tif`.chomp
+
+  # apply the crop
+  `convert #{ARGV[0]}.tif -crop #{crop_params} +repage #{ARGV[0]}_cropped.tif`
+
+  # calculate dimensions
+  lowres_dims = Dimensions.dimensions("#{ARGV[0]}.jpg")
+  highres_dims = Dimensions.dimensions("#{ARGV[0]}_cropped.tif")
+
+  # calculate scaling
+  x_scale = highres_dims[0].to_f / lowres_dims[0].to_f
+  y_scale = highres_dims[1].to_f / lowres_dims[1].to_f
+
+  # calculate scaled dimensions
+  cropped_width = stereo_metadata['width'] * x_scale
+  cropped_height = stereo_metadata['height'] * y_scale
+  x1 = stereo_metadata['x1'] * x_scale
+  x2 = stereo_metadata['x2'] * x_scale
+  y1 = stereo_metadata['y1'] * y_scale
+  y2 = stereo_metadata['y2'] * y_scale
+
+  # use the scaled dimensions to split the cropped original into the component images
+  $stderr.puts "Cropping image..."
+  `convert #{ARGV[0]}_cropped.tif -crop #{cropped_width}x#{cropped_height}+#{x1}+#{y1} +repage #{ARGV[0]}_0.png`
+
+  `convert #{ARGV[0]}_cropped.tif -crop #{cropped_width}x#{cropped_height}+#{x2}+#{y2} +repage #{ARGV[0]}_1.png`
+else
+  puts image_captures.to_json
+  abort("No matching captures for #{digital_id}")
+end