C # Image Compression Algorithm

///   <Summary>      ///  Zookeeper porn  ///   </Summary>      ///   <Param name = "filestream">  Batch stream  </Param>      ///   <Param name = "quality">  The larger the value is, the higher the quality is.  </Param>      ///  <Returns> </returns>      Private   Byte [] Compressionimage (Stream filestream, Long  Quality ){  Using (System. Drawing. Image IMG = System. Drawing. image. fromstream (filestream )){  Using (Bitmap bitmap = New  Bitmap (IMG) {imagecodecinfo codecinfo = Getencoder (IMG. rawformat); system. Drawing. imaging. encoder myencoder =System. Drawing. imaging. encoder. Quality; encoderparameters myencoderparameters = New Encoderparameters ( 1  ); Encoderparameter myencoderparameter = New  Encoderparameter (myencoder, quality); myencoderparameters. Param [  0 ] = Myencoderparameter;  Using (Memorystream MS = New Memorystream () {bitmap. Save (MS, codecinfo, myencoderparameters); myencoderparameters. Dispose (); myencoderparameter. Dispose ();  Return  Ms. toarray () ;}}}use: compressionimage (stream,  0l ) //  The minimum quality is 1 MB. The JPG size can be about KB.