Module: Asposeocrjava::ExtractTextFromPartOfImage

Defined in:
lib/asposeocrjava/OCR/extracttextfrompartofimage.rb

Instance Method Summary collapse

Instance Method Details

#initialize ⇒ Object 



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# File 'lib/asposeocrjava/OCR/extracttextfrompartofimage.rb', line 3

def initialize()
    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'
            
    # Initialize an instance of OcrEngine
    ocr_engine = Rjb::import('com.aspose.ocr.OcrEngine').new

    # Clear notifier list
    ocr_engine.clearNotifies()

    # Clear recognition blocks
    ocr_engine.getConfig().clearRecognitionBlocks()

    # Add 2 rectangle blocks to user defined recognition blocks
    ocr_engine.getConfig().addRecognitionBlock(Rjb::import('com.aspose.ocr.RecognitionBlock').createTextBlock(52, 48, 67, 74))
    ocr_engine.getConfig().addRecognitionBlock(Rjb::import('com.aspose.ocr.RecognitionBlock').createTextBlock(100, 46, 38, 46))

    # Ignore everything else on the image other than the user defined recognition blocks
    ocr_engine.getConfig().setDetectTextRegions(false)

    # Set Image property by loading an image from file path
    ocr_engine.setImage(Rjb::import('com.aspose.ocr.ImageStream').fromFile(data_dir + 'ocr.png'))
                
    # Run recognition process
    if ocr_engine.process()
        # Retrieve an array of recognized text by parts
        text = ocr_engine.getText().getPartsInfo()
        # Iterate over the text parts
        i = 0
        while i < text.length
            info = text[i]
            # Display part information
            puts "Block: " + info.getBox().to_string + " Text: " + info.getText().to_s
            i +=1
        end
    end
end