Module: Asposeimagingjava::ConvertingRasterImages

Defined in:
lib/asposeimagingjava/images/convertingrasterimages.rb

Instance Method Summary collapse

Instance Method Details

#binarization_with_fixed_threshold ⇒ Object 



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# File 'lib/asposeimagingjava/images/convertingrasterimages.rb', line 14

def binarization_with_fixed_threshold()
    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'

    # Load an existing image

    image = Rjb::import('com.aspose.imaging.Image').load(data_dir + "test.jpg")

    # Check if image is cached

    if !image.isCached()
        # Cache image if not already cached

        image.cacheData()
    end

    # Binarize image with predefined fixed threshold

    image.binarizeFixed(100)

    # Save the image to disk

    image.save(data_dir + "binarization_with_fixed_threshold.jpg")

    # Display Status.

    puts "Binarization image with Fixed Threshold successfully!"
end

#binarization_with_otsu_threshold ⇒ Object 



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# File 'lib/asposeimagingjava/images/convertingrasterimages.rb', line 36

def binarization_with_otsu_threshold()
    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'

    # Load an existing image

    image = Rjb::import('com.aspose.imaging.Image').load(data_dir + "test.jpg")

    # Check if image is cached

    if !image.isCached()
        # Cache image if not already cached

        image.cacheData()
    end

    # Binarize image with Otsu Thresholding

    image.binarizeOtsu()

    # Save the image to disk

    image.save(data_dir + "binarization_with_otsu_threshold.jpg")

    # Display Status.

    puts "Binarization image with Otsu Threshold successfully!"
end

#initialize ⇒ Object 



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# File 'lib/asposeimagingjava/images/convertingrasterimages.rb', line 3

def initialize()
    # Binarization with Fixed Threshold

    binarization_with_fixed_threshold()

    # Binarization with Otsu Threshold

    binarization_with_otsu_threshold()

    # Transform image to its grayscale representation

    transform_image_to_grayscale()
end

#transform_image_to_grayscale ⇒ Object 



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# File 'lib/asposeimagingjava/images/convertingrasterimages.rb', line 58

def transform_image_to_grayscale()
    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'

    # Load an existing image

    image = Rjb::import('com.aspose.imaging.Image').load(data_dir + "test.jpg")

    # Check if image is cached

    if !image.isCached()
        # Cache image if not already cached

        image.cacheData()
    end

    # Transform image to its grayscale representation

    image.grayscale()

    # Save the image to disk

    image.save(data_dir + "transform_image_to_grayscale.jpg")

    # Display Status.

    puts "Transform image to its grayscale representation successfully!"
end