Digital Image Processing (using Java)

}public static void main(String[] argv) {StandardKernel kernel = new HighPassKernel();kernel.write(new java.io.OutputStreamWriter(System.out));}}(p.161)java GaussianKernel: generate for σ=1.0 Gussian filterBufferedImage outputImage = ConvolutionOp.gaussianBlur(inputImage, 3.0f);↖σ(p.162)LISTING 7.4 A kernel class to support Gaussian low pass filteringpublic class GaussianKernel extends StandardKernel {public GaussianKernel() {}this(1.0f);public GaussianKernel(float sigma) {}super(getSize(sigma), getSize(sigma), createKernelData(sigma));public static int getSize(float sigma) {int radius = (int) Math.ceil(4.0f*sigma);return 2*radius+1;}public static float[] createKernelData(float sigma) {int n = (int) Math.ceil(4.0f*sigma);int size = 2*n+1;float[] data = new float[size*size];double r, s = 2.0*sigma*sigma;float norm = 0.0f;- 46 -