OcrSpace

Simple API wrapper for OCR.Space, An awesome free API for converting images to text. Register here for free api key.

Installation

Add this line to your application’s Gemfile:

gem 'ocr_space'

And then execute:

$ bundle

Or install it yourself as:

$ gem install ocr_space

Hosted at rubygems.org

ENV Variables (Optional)

Setting env variables with API key is optional but for command line interface to work you will have to set ENV variable ‘ocr_api_key’ to your API key. For more details on the command line interface, scroll to the bottom of this page.

$ export ocr_api_key='YOUR API KEY'

Usage

Instantiate OcrSpace resource with API key

require 'ocr_space'

resource = OcrSpace::Resource.new(apikey: "YOUR API KEY")
#By default it picks up ocr_api_key='YOUR API KEY' from your env variables

To convert images from URL

result = resource.convert url: "http://bit.ly/2ih9aXt"

puts result
=>  #[{"TextOverlay"=>{"Lines"=>[], "HasOverlay"=>false, "Message"=>"Text overlay is not provided as it is not requested"}, "FileParseExitCode"=>1, "ParsedText"=>"If you want to find the secrets of the \r\nuniverse, think in terms of energy, \r\nfrequency and vibration. \r\nAZ QUOTES \r\n", "ErrorMessage"=>"", "ErrorDetails"=>""}]

result = resource.clean_convert url: "http://bit.ly/2ih9aXt"

puts result

=> #If you want to find the secrets of the universe, think in terms of energy, frequency and vibration. AZ QUOTES

To convert images from file upload

result = resource.convert file: "/Users/suyesh/Desktop/nicola_tesla.jpg"

puts result #Raw result

=>  #{"TextOverlay"=>{"Lines"=>[], "HasOverlay"=>false, "Message"=>"Text overlay is not provided as it is not requested"}, "FileParseExitCode"=>1, "ParsedText"=>"If you want to find the secrets of the \r\nuniverse, think in terms of energy, \r\nfrequency and vibration. \r\nAZ QUOTES \r\n", "ErrorMessage"=>"", "ErrorDetails"=>""}

result = resource.clean_convert file: "/Users/suyesh/Desktop/nicola_tesla.jpg"

puts result

=> #If you want to find the secrets of the universe, think in terms of energy, frequency and vibration. AZ QUOTES

Command line interface BONUS

You can run ocr_space through shell to get quick result from a image using file path or URL.

$ ocr_space /Users/suyesh/Desktop/nicola_tesla.jpg

=> If you want to find the secrets of the universe, think in terms of energy, frequency and vibration. AZ QUOTES

Optional

You can also pass in Optional attributes

isOverlayRequired:
#[Optional] Default = False Allows you to specify if the image/pdf text overlay is required. Overlay could be #used to show the text over the image

language:
#Czech = ce; Danish = dan; Dutch = dut; English = eng; Finnish = fin; French = fre; German = ger;Hungarian=hun;
#Italian = ita; Norwegian = nor; Polish = pol; Portuguese = por; Spanish = spa; Swedish = swe; #ChineseSimplified = chs; Greek = gre; Japanese = jpn; Russian = rus; Turkish = tur; ChineseTraditional = cht; #Korean = kor