C#实现绘制随机噪点和直线

 

实践过程

效果

代码

public partial class Form1 : Form
  {
      public Form1()
      {
          InitializeComponent();
      }

      private void button1_Click(object sender, EventArgs e)
      {
          Bitmap image = new Bitmap(100, 22);
          Graphics g = Graphics.FromImage(image);
          try
          {
              //生成随机生成器
              Random random = new Random();
              //清空图片背景色
              g.Clear(Color.White);
              //画图片的背景噪音线
              for (int i = 0; i < 2; i++)
              {
                  Point tem_Point_1 = new Point(random.Next(image.Width), random.Next(image.Height));
                  Point tem_Point_2 = new Point(random.Next(image.Width), random.Next(image.Height));
                  g.DrawLine(new Pen(Color.Black), tem_Point_1, tem_Point_2);
              }

              //画图片的前景噪音点
              for (int i = 0; i < 100; i++)
              {
                  Point tem_point = new Point(random.Next(image.Width), random.Next(image.Height));
                  image.SetPixel(tem_point.X, tem_point.Y, Color.FromArgb(random.Next()));
              }

              //画图片的边框线
              g.DrawRectangle(new Pen(Color.Silver), 0, 0, image.Width - 1, image.Height - 1);
              pictureBox1.Image = image;
          }
          catch
          {
          }
      }
  }
public partial class Form1 : Form
  {
      public Form1()
      {
          InitializeComponent();
      }

      private void button1_Click(object sender, EventArgs e)
      {
          if (openFileDialog1.ShowDialog() == DialogResult.OK)
          {
              pictureBox1.Image = Image.FromFile(openFileDialog1.FileName);
          }
      }

      private void button2_Click(object sender, EventArgs e)
      {
          if (pictureBox1.Image != null)
          {
              Bitmap bt = new Bitmap(pictureBox1.Image);
              Graphics g = Graphics.FromImage(bt);
              g.DrawLine(new Pen(Color.Red, 40), new Point(0, bt.Height / 2), new Point(bt.Width, bt.Height / 2));
              g.DrawLine(new Pen(Color.Red, 40), new Point(bt.Width / 2, 0), new Point(bt.Width / 2, bt.Height));
              g.DrawLine(new Pen(Color.Red, 40), new Point(0, 0), new Point(bt.Width, bt.Height));
              g.DrawLine(new Pen(Color.Red, 40), new Point(0, bt.Height), new Point(bt.Width, 0));
              pictureBox1.Image = bt;
          }
      }
  }

关于C#实现绘制随机噪点和直线的文章就介绍至此,更多相关C#绘制随机噪点 直线内容请搜索编程宝库以前的文章,希望以后支持编程宝库

 实践过程效果代码 public partial class GroundForm : Form { public GroundForm() { InitializeComponent(); ...