图片雾化效果AtomizationImage实例

namespace AtomizationImage
{
public partial class Frm_Main : Form
{
public Frm_Main()
{
InitializeComponent();
}

public Image AtomizationEffect(PictureBox Pict, int effect)
{
int Var_W = Pict.Width; //获取图片的宽度
int Var_H = Pict.Height; //获取图片的高度
Bitmap Var_bmp = new Bitmap(Var_W, Var_H); //根据图片的大小实例化Bitmap类
Bitmap Var_SaveBmp = (Bitmap)Pict.Image; //根据图片实例化Bitmap类
for (int i = 0; i < Var_W; i ) //遍历图片中的各象素
{
for (int j = 0; j < Var_H; j )
{
Random Var_random = new Random(); //实例化Random类
int k = Var_random.Next(200000); //获取随机数
//获取象素块
int tem_w = i k % effect;
int tem_h = j k % effect;
//获取的象素不超出图片的大小
if (tem_w >= Var_W)
tem_w = Var_W - 1;
if (tem_h >= Var_H)
tem_h = Var_H - 1;
Color tem_Color = Var_SaveBmp.GetPixel(tem_w, tem_h); //获取当前象素的颜色
Var_bmp.SetPixel(i, j, tem_Color); //设置当前象素的颜色
}
}
return Var_bmp;
}

private void button1_Click(object sender, EventArgs e)
{
pictureBox1.Image = AtomizationEffect(pictureBox1, 10);
pictureBox1.SizeMode = PictureBoxSizeMode.Zoom;
}
}
}