compress image in asp.net c#

Image myImage = //... load the image somehow
// Save the image with a quality of 50%
SaveJpeg (destImagePath, myImage, 50);
//add this!
using System.Drawing.Imaging;

                          /// <summary>
        /// Saves an image as a jpeg image, with the given quality
        /// </summary>
        /// <param name="path">Path to which the image would be saved.</param>
        // <param name="quality">An integer from 0 to 100, with 100 being the
        /// highest quality</param>
        public static void SaveJpeg (string path, Image img, int quality)
        {
            if (quality<0  ||  quality>100)
                throw new ArgumentOutOfRangeException("quality must be between 0 and 100.");

           
            // Encoder parameter for image quality
            EncoderParameter qualityParam =
                new EncoderParameter (Encoder.Quality, quality);
            // Jpeg image codec
            ImageCodecInfo   jpegCodec = GetEncoderInfo("image/jpeg");

            EncoderParameters encoderParams = new EncoderParameters(1);
            encoderParams.Param[0] = qualityParam;

            img.Save (path, jpegCodec, encoderParams);
        }

        /// <summary>
        /// Returns the image codec with the given mime type
        /// </summary>
        private static ImageCodecInfo GetEncoderInfo(string mimeType)
        {
            // Get image codecs for all image formats
            ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();

            // Find the correct image codec
            for(int i=0; i<codecs.Length; i++)
                if(codecs[i].MimeType == mimeType)
                    return codecs[i];
            return null;
        }