rtesseract

Ruby library for working with the Tesseract OCR.

REQUIREMENTS:

To work properly rtesseract are needed:

Tesseract - Program
ImageMagic - Program
RMagick or mini_magick - Gem

Atention: Version 1.0.0 works fine with Ruby 2.0 and tesseract 3.0 and lower versions of rtesseract works fine with Ruby 1.8 and tesseract 2.0.4.

EXAMPLE USAGE

It’s very simple to use rtesseract:

CONVERT IMAGE TO STRING

image = RTesseract.new("my_image.jpg")
image.to_s #Getting the value

CHANGE THE IMAGE

image = RTesseract.new("my_image.jpg")
image.source = "new_image.png"
image.to_s

TRANSFORM THE IMAGE

image = RTesseract.read("my_image.jpg") do |img|
  img = img.white_threshold(245)
  img = img.quantize(256,Magick::GRAYColorspace)
end
image.to_s

CONVERT PARTS OF IMAGE TO STRING

mix_block = RTesseract::Mixed.new("test.jpg") do |image|
  image.area(28,  19, 25, 25)
  image.area(180, 22, 20, 28)
  image.area(218, 22, 24, 28)
  image.area(248, 24, 22, 22)
end
mix_block.to_s

OR

mix_block = RTesseract::Mixed.new("test.jpg",{:areas => [
  {:x => 28,  :y=>19, :width=>25, :height=>25 },
  {:x => 180,  :y=>22, :width=>20, :height=>28},
  {:x => 218,  :y=>22, :width=>24, :height=>28},
  {:x => 248,  :y=>24, :width=>22, :height=>22}
]})
mix_block.to_s

Note on Patches/Pull Requests

Fork the project.
Make your feature addition or bug fix.
Send me a pull request. Bonus points for topic branches.