C＃圖像保存點

Question

我不知道我做錯了，我一直在尋找網絡，並嘗試了很多不同的東西，但沒有任何作品，當我嘗試保存圖像有很多灰點

結果可以在這裏看到
http://postimg.org/image/btvob8f6l/

public static void ExifSave(List<InfoList> data) 
    { 
     ImageCodecInfo jgpEncoder = GetEncoder(ImageFormat.Jpeg); 
     System.Drawing.Imaging.Encoder myEncoder = System.Drawing.Imaging.Encoder.Quality; 
     EncoderParameters myEncoderParameters = new EncoderParameters(1); 
     EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, 50L); 
     myEncoderParameter = new EncoderParameter(myEncoder, 100L); 
     myEncoderParameters.Param[0] = myEncoderParameter; 

     list = data; 
     foreach (InfoList i in data) 
     { 
      SetProperty(ref prop, i.id, i.value); 
      image.SetPropertyItem(prop); 
     } 
     fs.Dispose(); 
     try 
     { 
      image.Save(Path); 
     } 
     catch (Exception e) 
     { 
      new MessagePromt("DEBUG::LoadImages()::Error attempting to create image::" + e.Message, e.Message); 
     } 
    } 
    private static ImageCodecInfo GetEncoder(ImageFormat format) 
    { 
     ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders(); 
     foreach (ImageCodecInfo codec in codecs) 
     { 
      if (codec.FormatID == format.Guid) 
      { 
       return codec; 
      } 
     } 
     return null; 
    } 

Answer 1

如果image是Bitmap類，你可能需要將EncoderParameters傳遞到Save方法

image.Save(Path, jgpEncoder, myEncoderParameters);