Class: Pano::ImageFileSet

Inherits:
Object
  • Object
show all
Defined in:
lib/pano/image_file_set.rb

Constant Summary collapse

BRACKETS = 
5

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dir_path) ⇒ ImageFileSet

Returns a new instance of ImageFileSet.



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# File 'lib/pano/image_file_set.rb', line 8

def initialize dir_path
  @base_path = dir_path
  paths = Dir[File.join(@base_path,"*.JPG")]
  @files = paths.map {|path| ImageFile.new path }
  @files.sort_by &:created_at
end

Instance Attribute Details

#base_path ⇒ Object (readonly)

Returns the value of attribute base_path.



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# File 'lib/pano/image_file_set.rb', line 6

def base_path
  @base_path
end

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/pano/image_file_set.rb', line 6

def files
  @files
end

Instance Method Details

#enfuse(dir, name, files = []) ⇒ Object 



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# File 'lib/pano/image_file_set.rb', line 97

def enfuse dir, name, files = []
  return if files.blank?
  FileUtils.mkpath dir
#      contrast_weight = 0.6
#      entropy_weight = 0.4
#      exposure_weight = 0.5
#      saturation_weight = 0.2
  target = File.join(dir, name + ".tif")
  input = files.map {|file| file.jpg_path }.join(" ")
  #options = "--contrast-weight=#{contrast_weight} --entropy-weight=#{entropy_weight} --exposure-weight=#{exposure_weight} --saturation-weight=#{saturation_weight} --compression=LZW"
  options = "--compression=LZW"
  system "enfuse #{options} -o #{target} #{input}"

  target
end

#pngs(dir, name, file) ⇒ Object 



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# File 'lib/pano/image_file_set.rb', line 86

def pngs dir, name, file
  FileUtils.mkpath dir
  target = File.join(dir, name + ".png").to_s
  cmd = "convert #{file.jpg_path} #{target}"

  puts "-----------------"
  puts cmd
  puts "-----------------"
  system cmd
end

#spit_and_copy_files(apply_mask = false) ⇒ Object 



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# File 'lib/pano/image_file_set.rb', line 48

def spit_and_copy_files apply_mask = false
  puts "analysing files..."
  panos, misc = split_images
  panos.each_with_index do |pano, index|
    pano_dir = File.join(@base_path, "pano.#{index}")
    puts "coping to #{pano_dir}"
    pano.each do |file|
      file.copy_to pano_dir
    end
    i = 0
    pano.each_slice(BRACKETS) do |files|
      i+=1
      pngs(File.join(pano_dir, "png"), "%02d" % i, files.first)
      fused = enfuse(File.join(pano_dir, "fused"), "%02d" % i, files)
      if apply_mask
        if (1..6).include? i
          system "convert #{fused} #{TOOL_ROOT}/lib/mask.png \
                    +matte -compose CopyOpacity -composite \
                    #{fused}"
        elsif i >= pano.length
          system "convert #{fused} #{TOOL_ROOT}/lib/mask_last.png \
                    +matte -compose CopyOpacity -composite \
                    #{fused}"
        end
      end
      system "mogrift -rotate -90 #{fused}"
      system "exiftool -overwrite_original -TagsFromFile #{files.first.jpg_path} #{fused}"
    end
  end
  
  misc_dir = File.join(@base_path, "misc")
  puts "coping to #{misc_dir}"
  misc.each do |file|
    file.copy_to misc_dir
  end
  
end

#split_images ⇒ Object 



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# File 'lib/pano/image_file_set.rb', line 15

def split_images
  pano = []
  panos = []
  misc = []
  i = 0
  while i < @files.length 
    file = @files[i]
    if file.for_pano?
      if pano.length < 13 * BRACKETS
        pano << file
      else
        last = pano.last
        if (file.created_at - last.created_at) > 1.5.minutes
          panos << pano
          pano = []
        end
        pano << file
      end
    else
      if pano.present?
        panos << pano
        pano = []
      end
      misc << file
    end
    i+=1
  end
  if pano.present?
    panos << pano
  end
  [panos, misc]
end