我用了
private BitmapImage byteArrayToImage(byte[] byteArrayIn) { try { MemoryStream stream = new MemoryStream(); stream.Write(byteArrayIn, 0, byteArrayIn.Length); stream.Position = 0; System.Drawing.Image img = System.Drawing.Image.FromStream(stream); BitmapImage returnImage = new BitmapImage(); returnImage.BeginInit(); MemoryStream ms = new MemoryStream(); img.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp); ms.Seek(0, SeekOrigin.Begin); returnImage.StreamSource = ms; returnImage.EndInit(); return returnImage; } catch (Exception ex) { throw ex; } return null; }
在我的应用程序中,此方法将字节数组转换为图像。但是它会抛出“参数无效”异常。为什么会发生..?有其他替代方法吗??
嗨,这应该工作:
private static BitmapImage LoadImage(byte[] imageData) { if (imageData == null || imageData.Length == 0) return null; var image = new BitmapImage(); using (var mem = new MemoryStream(imageData)) { mem.Position = 0; image.BeginInit(); image.CreateOptions = BitmapCreateOptions.PreservePixelFormat; image.CacheOption = BitmapCacheOption.OnLoad; image.UriSource = null; image.StreamSource = mem; image.EndInit(); } image.Freeze(); return image; }