C#图像处理（5）：无损保存图片

C#使用默认方法对图像进行保存的时候图像会有损失，以下提供无损保存的方法：

         /// <summary>
         /// 无损保存图片
         /// </summary>
         /// <param name="imgResult">图片</param>
         /// <param name="Path">保存的路径</param>
         /// <param name="ImageType">图片的类型，image/jpeg,image/png,image/gif,image/tiff,image/bmp</param>
         /// <returns></returns>
         public bool SaveImage(Image imgResult, string Path, string ImageType)
         {
             EncoderParameter p;
             EncoderParameters ps;
             try
             {
                 ps = new EncoderParameters();

                 p = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L);
                 ps.Param[] = p;

                 ImageCodecInfo ii = GetCodecInfo(ImageType);
                 imgResult.Save(Path, ii, ps);
                 imgResult.Dispose();
             }
             catch (Exception ex)
             {
                 return false;
             }
             return true;
         }

         /// <summary>
         /// 获取图片的编码类型
         /// </summary>
         /// <param name="mimeType"></param>
         /// <returns></returns>
         public ImageCodecInfo GetCodecInfo(string mimeType)
         {
             ImageCodecInfo[] CodecInfo = ImageCodecInfo.GetImageEncoders();
             foreach (ImageCodecInfo ici in CodecInfo)
             {
                 if (ici.MimeType == mimeType) return ici;
             }
             return null;
         }