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(1);

                p = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L);
                ps.Param[0] = 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;
        }