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  • 处理tif图片

        protected void ManageTif()
        {
            //分割Tif图片为多个Gif图片
            string TruePath = Server.MapPath("../Images/www.tif");
            System.Drawing.Image img = System.Drawing.Image.FromFile(TruePath);
            Guid guid = (Guid)img.FrameDimensionsList.GetValue(0);
            FrameDimension dimension = new FrameDimension(guid);
            int totalPage = img.GetFrameCount(dimension);

            this.statusBar1.Text = "共" + totalPage + "页";

            for (int i = 0; i < totalPage; i++)
            {
                img.SelectActiveFrame(dimension, i);
                //直接用image存(经测试转换的不清晰)
                //img.Save(Server.MapPath("../Images/") + i + ".gif", System.Drawing.Imaging.ImageFormat.Gif);

                //使用内存流(经测试效果应该是最好的)
                //System.IO.MemoryStream ms = new System.IO.MemoryStream();
                //img.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                //Response.ClearContent();
                //Response.ContentType = "image/Jpeg";
                //Response.BinaryWrite(ms.ToArray());

                //使用文件流(经测试效果中等,我现在的选择)
                Bitmap newBmp = new Bitmap(img.Width, img.Height, PixelFormat.Format24bppRgb);
                newBmp.Save(Server.MapPath("../Images/")+ i + ".gif", ImageFormat.Jpeg);
                System.IO.FileStream fs = new System.IO.FileStream(Server.MapPath("../Images/") + i + ".gif", System.IO.FileMode.Open);
                img.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
                //动态的添上
                Table tblParent = new Table();
                TableRow row = new TableRow();
                tblParent.Rows.Add(row);
                TableCell cell = new TableCell();
                cell.Width = Unit.Percentage(30);
                row.Cells.Add(cell);
                System.Web.UI.WebControls.Image ImageTmp = new System.Web.UI.WebControls.Image();
                ImageTmp.ID = "ImageTmp" + "i";
                ImageTmp.ImageUrl = "../Images/" + i + ".gif";
                row.Cells[0].Controls.Add(ImageTmp);
                form1.Controls.Add(tblParent);
            }
        }


    Image1.ImageUrl = "../Images/" + i + ".gif";是我懒了 只做了一个显示 正常的话 应该动态生成分成的gif图片数
    还要建一个这些图片的索引 说明这些图片属于一个tif图片 动态添上了 其它大家自己做就好了

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  • 原文地址:https://www.cnblogs.com/cuihongyu3503319/p/826240.html
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