how to stream bitmap ?(C#)

Question

_{Sunday, September 14, 2014 7:02 AM}

how to stream bitmap ?(C#)

All replies (2)

_{Sunday, September 14, 2014 7:34 AM ✅Answered | 1 vote}

var bitmap = new Bitmap(@"c:\Documente und Einstellungen\daniel.hilgarth\Desktop\Unbenannt.bmp");

ImageCodecInfo jpgEncoder = ImageCodecInfo.GetImageEncoders().Single(x => x.FormatDescription == "JPEG");
Encoder encoder2 = System.Drawing.Imaging.Encoder.Quality;
EncoderParameters parameters = new System.Drawing.Imaging.EncoderParameters( 1 );
EncoderParameter parameter = new EncoderParameter( encoder2, 50L );
parameters.Param[0] = parameter;

System.IO.Stream stream = new MemoryStream();
bitmap.Save( stream, jpgEncoder, parameters );
bitmap.Save(@"C:\Temp\TestJPEG.jpg", jpgEncoder, parameters);

var bytes = ((MemoryStream)stream).ToArray();
System.IO.Stream inputStream = new MemoryStream(bytes);
Bitmap fromDisk = new Bitmap(@"C:\Temp\TestJPEG.jpg");
Bitmap fromStream = new Bitmap(inputStream);

_{Monday, September 15, 2014 9:39 AM ✅Answered | 1 vote}

Hi move ellipse,

I think the following is what you want. Please take a look

 //byte[] to image 
        public static Bitmap BytesToBitmap(byte[] Bytes)
        {
            MemoryStream stream = null;
            try
            {
                stream = new MemoryStream(Bytes);
                return new Bitmap((Image)new Bitmap(stream));
            }
            catch (ArgumentNullException ex)
            {
                throw ex;
            }
            catch (ArgumentException ex)
            {
                throw ex;
            }
            finally
            {
                stream.Close();
            }
        }

        //Image to byte[]   
        public static byte[] BitmapToBytes(Bitmap Bitmap)
        {
            MemoryStream ms = null;
            try
            {
                ms = new MemoryStream();
                Bitmap.Save(ms, Bitmap.RawFormat);
                byte[] byteImage = new Byte[ms.Length];
                byteImage = ms.ToArray();
                return byteImage;
            }
            catch (ArgumentNullException ex)
            {
                throw ex;
            }
            finally
            {
                ms.Close();
            }
        }

Have a nice day!

Kristin

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