Bir görüntüyü base64 öğesine ve tekrar resme dönüştürmek istiyorum. Şimdiye kadar denediğim kod ve hata da burada. Herhangi bir öneriniz lütfen?Bir resmi base64'e dönüştürün ve tersi
public void Base64ToImage(string coded)
{
System.Drawing.Image finalImage;
MemoryStream ms = new MemoryStream();
byte[] imageBytes = Convert.FromBase64String(coded);
ms.Read(imageBytes, 0, imageBytes.Length);
ms.Seek(0, SeekOrigin.Begin);
finalImage = System.Drawing.Image.FromStream(ms);
Response.ContentType = "image/jpeg";
Response.AppendHeader("Content-Disposition", "attachment; filename=LeftCorner.jpg");
finalImage.Save(Response.OutputStream, ImageFormat.Jpeg);
}
hatadır:
Parameter is not valid.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Parameter is not valid.
Source Error:
Line 34: ms.Read(imageBytes, 0, imageBytes.Length);
Line 35: ms.Seek(0, SeekOrigin.Begin);
Line 36: finalImage = System.Drawing.Image.FromStream(ms);
Line 37:
Line 38: Response.ContentType = "image/jpeg";
Source File: e:\Practice Projects\FaceDetection\Default.aspx.cs Line: 36
Yine aynı alma satırdaki hata finalImage = System.Drawing.Image.FromStream (ms); –