将jpg字符串转换为图像

Question

I have a jpg strign stored in "(string)HttpContext.Current.Session["image" + 0];" that I am trying to convert to a System.Drawing.Image.

I know the string is correct, because when I do this -

img.Src = "data:image/jpg;base64," + (string)HttpContext.Current.Session["image" + 0];

Everying works as intended.

But when I do this -

 string inputString = (string)HttpContext.Current.Session["image" + 0];
            byte[] imageBytes = Convert.FromBase64String(inputString);
            using (MemoryStream ms = new MemoryStream(imageBytes))
            {
                System.Drawing.Image image = System.Drawing.Image.FromStream(ms, true);
            }

I get and error telling me the format is incorrect when trying to create an image from the stream.

Please help

Answer 1

don't you need to convert webp to jpg/png first? for example WebP-wrapper

    using (WebP webp = new WebP())
    {
      var image = webp.Decode(imageBytes );
    }