批量添加图片水印

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;

namespace ImageClarity
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }
        Image new_img;
        private void ChangeAlpha（）
        {
            pictureBox1.Refresh（）;
            Bitmap source = new Bitmap（pictureBox1.Image）;
            Bitmap effect = new Bitmap（pictureBox1.Image.WidthpictureBox1.Image.Height）;
            Graphics _effect = Graphics.FromImage（effect）;
            float[][] matrixItems ={new float[]{10000}
                                      new float [] {01000}
                                      new float []{00100}
                                      new float []{00000}
                                      new float[

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件         926  2009-02-06 15:58  sj\01\ImageClarity\ImageClarity.sln
     文件       14336  2009-02-06 16:26  sj\01\ImageClarity\ImageClarity.suo
     文件        2338  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\Form1.cs
     文件        4167  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\Form1.Designer.cs
     文件        6017  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\Form1.resx
     文件        3770  2009-02-06 16:01  sj\01\ImageClarity\ImageClarity\ImageClarity.csproj
     文件         493  2009-02-06 15:58  sj\01\ImageClarity\ImageClarity\Program.cs
     文件       10240  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\bin\Debug\ImageClarity.exe
     文件       24064  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\bin\Debug\ImageClarity.pdb
     文件       14328  2009-02-06 16:26  sj\01\ImageClarity\ImageClarity\bin\Debug\ImageClarity.vshost.exe
     文件         490  2007-07-21 01:33  sj\01\ImageClarity\ImageClarity\bin\Debug\ImageClarity.vshost.exe.manifest
     文件         663  2009-02-06 16:26  sj\01\ImageClarity\ImageClarity\obj\Debug\ImageClarity.csproj.FileListAbsolute.txt
     文件         847  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\obj\Debug\ImageClarity.csproj.GenerateResource.Cache
     文件       10240  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\obj\Debug\ImageClarity.exe
     文件         180  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\obj\Debug\ImageClarity.Form1.resources
     文件       24064  2009-02-06 16:25  sj\01\ImageClarity\ImageClarity\obj\Debug\ImageClarity.pdb
     文件         180  2009-02-06 16:03  sj\01\ImageClarity\ImageClarity\obj\Debug\ImageClarity.Properties.Resources.resources
     文件        1356  2009-02-06 15:58  sj\01\ImageClarity\ImageClarity\Properties\AssemblyInfo.cs
     文件        2874  2009-02-06 15:58  sj\01\ImageClarity\ImageClarity\Properties\Resources.Designer.cs
     文件        5612  2009-02-06 15:58  sj\01\ImageClarity\ImageClarity\Properties\Resources.resx
     文件        1097  2009-02-06 15:58  sj\01\ImageClarity\ImageClarity\Properties\Settings.Designer.cs
     文件         249  2009-02-06 15:58  sj\01\ImageClarity\ImageClarity\Properties\Settings.settings
     文件         926  2009-02-06 16:26  sj\02\composeImage\composeImage.sln
     文件       14336  2009-02-06 16:34  sj\02\composeImage\composeImage.suo
     文件        3770  2009-02-06 16:27  sj\02\composeImage\composeImage\composeImage.csproj
     文件        1298  2009-02-06 16:33  sj\02\composeImage\composeImage\Form1.cs
     文件        6305  2009-02-06 16:32  sj\02\composeImage\composeImage\Form1.Designer.cs
     文件        6221  2009-02-06 16:32  sj\02\composeImage\composeImage\Form1.resx
     文件         493  2009-02-06 16:26  sj\02\composeImage\composeImage\Program.cs
     文件        9728  2009-02-06 16:33  sj\02\composeImage\composeImage\bin\Debug\composeImage.exe
     文件       22016  2009-02-06 16:33  sj\02\composeImage\composeImage\bin\Debug\composeImage.pdb
............此处省略40个文件信息