public string WhiteUp(string t1, int x1, int y1)
{
//获取图片宽高
string t3 = "..\\UploadFile\\lj_fj\\" + t1;
t3 = System.AppDomain.CurrentDomain.BaseDirectory.ToString() + @"UploadFile\lj_fj\" + t1;
System.Drawing.Image Img = System.Drawing.Image.FromFile(t3);
int Width = Img.Width;
int Height = Img.Height;
//获取图片水平和垂直的分辨率
float dpiX = Img.HorizontalResolution;
float dpiY = Img.VerticalResolution;
//创建一个位图文件
Bitmap BitmapResult = new Bitmap(Width + x1 * 2, Height + y1 * 2, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
//设置位图文件的水平和垂直分辨率 与Img一致
BitmapResult.SetResolution(dpiX, dpiY);
//在位图文件上填充一个矩形框
Graphics Grp = Graphics.FromImage(BitmapResult);
System.Drawing.Rectangle Rec = new System.Drawing.Rectangle(0, 0, Width, Height + y1);
//定义一个白色的画刷
SolidBrush mySolidBrush = new SolidBrush(System.Drawing.Color.White);
//Grp.Clear(Color.White);
//将矩形框填充为白色
Grp.FillRectangle(mySolidBrush, Rec);
//Grp.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
//Grp.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//Grp.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
//向矩形框内填充Img
Grp.Clear(System.Drawing.Color.White);
Grp.DrawImage(Img, x1, y1, Rec, GraphicsUnit.Pixel);
string filename = DateTime.Now.ToString("yyyyMMddHHmmss");
//string t2 = System.AppDomain.CurrentDomain.BaseDirectory.ToString() + @"UploadFile\lj_fj\" + filename + ".bmp";
string t2 = t3.Replace(".jpg", ".bmp");
// Img.Save(t2);
//BitmapResult.Save("c:\\1.bmp");
BitmapResult.Save(@t2);
t2 = "http://zzhtxs.cn/UploadFile/lj_fj/" + filename + ".bmp";
//返回位图文件
Grp.Dispose();
GC.Collect();
return t2;
}
r2 = cmz1.WhiteUp(r2, 90, 30);