base64的byte[]如何转换成图片
发布网友
发布时间：2022-04-25 23:43
共2个回答
热心网友
时间：2022-04-23 07:55
图片到byte[]再到base64string的转换：
Bitmap bmp = new Bitmap(filepath);
MemoryStream ms = new MemoryStream();
bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
byte[] arr = new byte[ms.Length];
ms.Position = 0;
ms.Read(arr, 0, (int)ms.Length);
ms.Close();
string pic = Convert.ToBase64String(arr);
base64string到byte[]再到图片的转换：
byte[] imageBytes = Convert.FromBase64String(pic);
//读入MemoryStream对象
MemoryStream memoryStream = new MemoryStream(imageBytes, 0, imageBytes.Length);
memoryStream.Write(imageBytes, 0, imageBytes.Length);
//转成图片
Image image = Image.FromStream(memoryStream);
热心网友
时间：2022-04-23 09:13
再用ImageIO写内存图片
static BufferedImage
read(InputStream input) Returns a BufferedImage as the result of decoding
a supplied InputStream with an ImageReader
chosen automatically from among those currently registered.
