C#中按指定質量保存圖片的實例代碼 24位深度

 /// <summary>        /// 按指定的壓縮質量及格式保存圖片（微軟的Image.Save方法保存到圖片壓縮質量爲75)        /// </summary>        /// <param name="sourceImage">要保存的圖片的Image對象</param>        /// <param name="savePath">圖片要保存的絕對路徑</param>        /// <param name="imageQualityValue">圖片要保存的壓縮質量，該參數的值爲1至100的整數，數值越大，保存質量越好</param>        /// <returns>保存成功，返回true；反之，返回false</returns>        public bool SaveImageForSpecifiedQuality(System.Drawing.Image sourceImage, string savePath, int imageQualityValue)        {            //如下代碼爲保存圖片時，設置壓縮質量            EncoderParameters encoderParameters = new EncoderParameters();            EncoderParameter encoderParameter = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, imageQualityValue);            encoderParameters.Param[0] = encoderParameter;            try            {                ImageCodecInfo[] ImageCodecInfoArray = ImageCodecInfo.GetImageEncoders();                ImageCodecInfo jpegImageCodecInfo = null;                for (int i = 0; i < ImageCodecInfoArray.Length; i++)                {                    if (ImageCodecInfoArray[i].FormatDescription.Equals("JPEG"))                    {                        jpegImageCodecInfo = ImageCodecInfoArray[i];                        break;                    }                }                sourceImage.Save(savePath, jpegImageCodecInfo, encoderParameters);                return true;            }            catch            {                return false;            }        }