using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ShenTun.Camera.Common { public class ImageHelper { public static string ConvertImageToBase64(Image file) { using (MemoryStream memoryStream = new MemoryStream()) { file.Save(memoryStream, file.RawFormat); byte[] imageBytes = memoryStream.ToArray(); return Convert.ToBase64String(imageBytes); } } public static Image ConvertBase64ToImage(string base64String) { byte[] imageBytes = Convert.FromBase64String(base64String); using (MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length)) { ms.Write(imageBytes, 0, imageBytes.Length); return Image.FromStream(ms, true); } } public static ImageCodecInfo GetEncoder(ImageFormat format) { ImageCodecInfo[] codecs = ImageCodecInfo.GetImageDecoders(); foreach (ImageCodecInfo codec in codecs) { if (codec.FormatID == format.Guid) { return codec; } } return null; } } }