imlib2 imagemagick benchamrk

benchmark.rb

require 'mini_magick'
require 'imlib2'
require 'benchmark/ips'
require 'fileutils'
require 'tapp'

THUMB_SIZE = 80
SRC_DIR = Pathname('/Users/kenchan/Dropbox/Camera Uploads')
DEST_DIR = Pathname.pwd.join('tmp')

def imlib2(filepath)
  image = Imlib2::Image.load(filepath.to_s)

  width = image.width
  height = image.height

  if width > height
    size = height
    start_x = (width - height) / 2
    start_y = 0
  else
    size = width
    start_x = 0
    start_y = (height - width) / 2
  end

  dest= image.create_cropped_scaled(start_x, start_y, size, size, THUMB_SIZE, THUMB_SIZE)
  dest['quality'] = 100
  dest['compression'] = 0
  dest.save(DEST_DIR.join(filepath.basename).to_s)
end

def imagemagick(filepath)
  MiniMagick::Tool::Convert.new do |c|
    c.repage.+
    c.strip
    c.resize '80x80^'
    c.quality 100
    c.gravity 'center'
    c.crop '80x80+0+0'
    c << filepath
    c << DEST_DIR.join(filepath.basename).to_s
  end
end

def imagemagick_define(filepath)
  MiniMagick::Tool::Convert.new do |c|
    c.repage.+
    c.strip
    c.define 'jpeg:size=80x80'
    c.resize '80x80^'
    c.quality 100
    c.gravity 'center'
    c.crop '80x80+0+0'
    c << filepath
    c << DEST_DIR.join(filepath.basename).to_s
  end
end

FileUtils.mkdir_p(DEST_DIR)

Benchmark.ips do |x|
  %w(imlib2 imagemagick imagemagick_define).each do |lib|
    x.report(lib) do
      Pathname.glob(SRC_DIR.join("*.jp*g")).first(100).each do |f|
        send(lib, f)
      end
    end
  end
end

%w(imlib2 imagemagick imagemagick_define).each do |lib|
  Benchmark.bm do |x|
    x.report(lib) do
      Pathname.glob(SRC_DIR.join("*.jp*g")).first(10).each do |f|
        send(lib, f)
      end
    end
  end
end