标签：c#
特效油画显示image
此效果的彩***,某范围内像素随机处理.产生油画效果.非常酷.试试吧!
代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace CanvasImage
{
public partial class Frm_Main : Form
{
public Frm_Main()
{
InitializeComponent();
}
private Bitmap SourceBitmap;
private Bitmap MyBitmap;
private void button2_Click(object sender, EventArgs e)
{
//c#代码来自codego.net打开图像文件
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "图像文件(JPeg, Gif, Bmp, etc.)|*.jpg;*.jpeg;*.gif;*.bmp;*.tif; *.tiff; *.png| JPeg 图像文件(*.jpg;*.jpeg)|*.jpg;*.jpeg |GIF 图像文件(*.gif)|*.gif |BMP图像文件(*.bmp)|*.bmp|Tiff图像文件(*.tif;*.tiff)|*.tif;*.tiff|Png图像文件(*.png)| *.png |所有文件(*.*)|*.*";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
//得到原始大小的图像
SourceBitmap = new Bitmap(openFileDialog.FileName);
//得到缩放后的图像
MyBitmap = new Bitmap(SourceBitmap, this.pictureBox1.Width, this.pictureBox1.Height);
this.pictureBox1.Image = MyBitmap;
}
}
private void button1_Click(object sender, EventArgs e)
{
//以油画效果显示图像
Graphics g = this.panel1.CreateGraphics();
//取得图片尺寸
int width = MyBitmap.Width;
int height = MyBitmap.Height;
RectangleF rect = new RectangleF(0, 0, width, height);
Bitmap img = MyBitmap.Clone(rect, System.Drawing.Imaging.PixelFormat.DontCare);
//产生随机数序列
Random rnd = new Random();
//取不同的值决定油画效果的不同程度
int iModel = 2;
int i = width - iModel;
while (i > 1)
{
int j = height - iModel;
while (j > 1)
{
int iPos = rnd.Next(100000) % iModel;
//将该点的RGB值设置成附近iModel点之内的任一点
Color color = img.GetPixel(i + iPos, j + iPos);
img.SetPixel(i, j, color);
j = j - 1;
}
i = i - 1;
}
//重新绘制图像
g.Clear(Color.White);
g.DrawImage(img, new Rectangle(0, 0, width, height));
}
}
}
本文出自 “狒狒文艺狒狒” 博客，请务必保留此出处http://9521583.blog.51cto.com/9511583/1608760
标签：c#
原文地址：http://9521583.blog.51cto.com/9511583/1608760
