Module: RTesseract::Processor::MiniMagickProcessor

Defined in:
lib/processors/mini_magick.rb

Overview

Add to rtesseract a image manipulation with MiniMagick

Class Method Summary collapse

Class Method Details

.a_name?(name) ⇒ Boolean

Check if is this Processor

Returns:

  • (Boolean) 


14
15
16
 
# File 'lib/processors/mini_magick.rb', line 14

def self.a_name?(name)
  %w(mini_magick MiniMagickProcessor).include?(name.to_s)
end

.image?(object) ⇒ Boolean

Check if is a MiniMagick image

Returns:

  • (Boolean) 


38
39
40
 
# File 'lib/processors/mini_magick.rb', line 38

def self.image?(object)
  object.class == MiniMagick::Image
end

.image_to_tif(source, points = {}) ⇒ Object

Convert Image to Tiff



19
20
21
22
23
24
25
26
27
28
29
30
 
# File 'lib/processors/mini_magick.rb', line 19

def self.image_to_tif(source, points = {})
  tmp_file = Tempfile.new(['', '.tif'])
  cat = source.is_a?(Pathname) ? read_with_processor(source.to_s) : source
  cat.format('tif') do |c|
    c.compress 'None'
    c.alpha 'off' if MiniMagick.cli != :graphicsmagick
  end
  cat.crop("#{points[:w]}x#{points[:h]}+#{points[:x]}+#{points[:y]}") if points.is_a?(Hash) && points.values.compact != []
  cat.alpha 'off' if MiniMagick.cli != :graphicsmagick
  cat.write tmp_file.path.to_s
  tmp_file
end

.read_with_processor(path) ⇒ Object

Cast instance of image



33
34
35
 
# File 'lib/processors/mini_magick.rb', line 33

def self.read_with_processor(path)
  MiniMagick::Image.open(path.to_s)
end

.setup ⇒ Object

Setup Processor



9
10
11
 
# File 'lib/processors/mini_magick.rb', line 9

def self.setup
  require 'mini_magick'
end