Image dilation - Java 2D Graphics

Java examples for 2D Graphics:BufferedImage Effect

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Description

Image dilation

Demo Code


//package com.java2s;

public class Main {
    public static int[][] dilation(int[][] image) {
        int w = image[0].length;
        int h = image.length;
        int[][] retVal = new int[h][w];
        int[] ii = { 0, 1, 0, -1, 0 };
        int[] jj = { 1, 0, -1, 0, 0 };
        int n = ii.length;

        for (int y = 0; y < h; y++) {
            for (int x = 0; x < w; x++) {
                int count = 0;

                for (int t = 0; t < n; t++) {
                    if (y + ii[t] < 0 || y + ii[t] >= h || x + jj[t] < 0
                            || x + jj[t] >= w) {
                        continue;
                    }/* w w w .  ja v  a 2s  .  c o  m*/

                    if (image[y + ii[t]][x + jj[t]] == 0) {
                        count++;
                    }

                }

                retVal[y][x] = count >= 2 ? 0 : 255;
            }
        }

        return retVal;
    }
}

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