module Asposeimagingjava::SpecifyBitdepthForPngImage

Public Class Methods

new() click to toggle source
# File lib/asposeimagingjava/images/specifybitdepthforpngimage.rb, line 3
def initialize()
    data_dir = File.dirname(File.dirname(File.dirname(File.dirname(__FILE__)))) + '/data/'

    # Load an existing image (of type bmp) in an instance of Image class
    image = Rjb::import('com.aspose.imaging.Image').load(data_dir + "sample.png")

    # Create an instance of PngOptions
    options = Rjb::import('com.aspose.imaging.imageoptions.PngOptions').new
    
    # Set the desired ColorType
    options.setColorType(Rjb::import('com.aspose.imaging.fileformats.png.PngColorType').Grayscale)
                  
    # Set the BitDepth according to the specified ColorType
    options.setBitDepth(1)

    # Save the result on disc
    image.save(data_dir + "specify_bitdepth.png", options)

    # Display Status.
    puts "Specified bit depth for PNG image successfully!"
end