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how to display image in picturebox without saving in local file system in C#?

//Retrieve an image in Jpg format and store it into a variable.
var imgFile = (ImageFile)ScanerItem.Transfer(FormatID.wiaFormatJPEG);
var Path = #"D:\ScanImg.jpg";
// save the image in some path with filename.
imgFile.SaveFile(Path);
pictureBox1.ImageLocation = Path;

Based on the following SO answer, you can get the byte[] of the image with (byte[])imgFile.FileData.get_BinaryData():
converting .__comobj WIA to byte[] in C# application
A bitmap can be put as source into the PictureBox.
Therefore the byte[] as to put into a MemoryStream and create a Bitmap:
var imgFile = (ImageFile)ScanerItem.Transfer(FormatID.wiaFormatJPEG);
byte[] imageBytes = (byte[])imgFile.FileData.get_BinaryData();
Bitmap image;
using (MemoryStream stream = new MemoryStream(imageBytes))
{
image = new Bitmap(stream);
}
pictureBox1.Image = image;

How to convert base64 string to image binary file and save onto server [duplicate]

This question already has answers here:
C# Base64 String to JPEG Image
(4 answers)
Closed 7 years ago.
As an example I have converted a canvas element with a re-sized image and posted into a hidden input field that's now encoded as
data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD...
This value then posted to the same page which I need to convert this string into an image and save onto the server.
Code Behind File (upload.aspx)
protected void btnUpload_Click(object sender, EventArgs e)
{
HttpPostedFile filePosted = Request.Files["newinput"];
string base64String = filePosted.ToString();
// Convert Base64 String to byte[]
byte[] imageBytes = Convert.FromBase64String(base64String);
MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length);
// Convert byte[] to Image
ms.Write(imageBytes, 0, imageBytes.Length);
System.Drawing.Image image = System.Drawing.Image.FromStream(ms, true);
//I DONT KNOW HOW TO WRITE ABOVE INTO THE SaveAs CONDITION BELOW
if (filePosted != null && filePosted.ContentLength > 0)
{
string fileNameApplication = Path.GetFileName(filePosted.FileName);
string fileExtensionApplication = Path.GetExtension(fileNameApplication);
// generating a random guid for a new file at server for the uploaded file
string newFile = Guid.NewGuid().ToString() + fileExtensionApplication;
// getting a valid server path to save
string filePath = Path.Combine(Server.MapPath("~/Assets/") + Request.QueryString["id"] + "/", newFile);
if (fileNameApplication != String.Empty)
{
filePosted.SaveAs(filePath);
}
}
I'm pretty sure I need to convert this the imagedata to a binary file before saving on the server but I can't quite get how I need to amend the code above. Any ideas? The code to save to the server doesn't work.
Once I have converted this to an image and changed it's name as above - I'm storing this back to a database via LINQ - with a URL appended to it.
Any help would be greatly appreciated.

Hope below functions helps.
public string ImageToBase64(Image image,
System.Drawing.Imaging.ImageFormat format)
{
using (MemoryStream ms = new MemoryStream())
{
// Convert Image to byte[]
image.Save(ms, format);
byte[] imageBytes = ms.ToArray();
// Convert byte[] to Base64 String
string base64String = Convert.ToBase64String(imageBytes);
return base64String;
}
}
public Image Base64ToImage(string base64String)
{
// Convert Base64 String to byte[]
byte[] imageBytes = Convert.FromBase64String(base64String);
MemoryStream ms = new MemoryStream(imageBytes, 0,
imageBytes.Length);
// Convert byte[] to Image
ms.Write(imageBytes, 0, imageBytes.Length);
Image image = Image.FromStream(ms, true);
return image;
}
EDIT 1 -
From the comments it seems that you are getting base64 string and you need to save it as image on server and then whenever required you need to show that image using physical server path.
Ok. Base64ToImage will give you image for your base64 string. You can save it on server using
image.Save("PATH", System.Drawing.Imaging.ImageFormat.Jpeg);
And this "PATH" you have supplied or created can be stored in DB as URL, which you can use at the time of display.
Note: Make sure that you have write access to folder where you are saving image.
EDIT-2
Your function should look like below. Please put validation code, error handling as required.
protected void btnUpload_Click(object sender, EventArgs e)
{
HttpPostedFile filePosted = Request.Files["newinput"];
string base64String = filePosted.ToString();
// Convert Base64 String to byte[]
byte[] imageBytes = Convert.FromBase64String(base64String);
MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length);
// Convert byte[] to Image
ms.Write(imageBytes, 0, imageBytes.Length);
System.Drawing.Image image = System.Drawing.Image.FromStream(ms, true);
string newFile = Guid.NewGuid().ToString() + fileExtensionApplication;
string filePath = Path.Combine(Server.MapPath("~/Assets/") + Request.QueryString["id"] + "/", newFile);
image.Save(filepath,ImageFormat.Jpeg);
}

how to "convert a system.windows.control.image" to "System.Drawing.Image" in c#

Hello friends i want to "convert a system.windows.control.image" to "System.Drawing.Image",but i am unable to do so.I am using below code for this
var e = (MouseButtonEventArgs)sender;
var device = e.MouseDevice.DirectlyOver;
System.Windows.Controls.Image img = (System.Windows.Controls.Image)device;
I have "img" i.e of type "system.windows.control.image" i need to convert it to bitmap or drawing type.

Try this....
Use your img variable in this code...
MemoryStream ms = new MemoryStream();
System.Windows.Media.Imaging.BmpBitmapEncoder bbe = new BmpBitmapEncoder();
bbe.Frames.Add(BitmapFrame.Create(new Uri(img.Source.ToString(),UriKind.RelativeOrAbsolute)));
bbe.Save(ms);
System.Drawing.Image img2 = System.Drawing.Image.FromStream(ms);
button1.Image = img2;
convert from byte[] to image
MemoryStream ms = new MemoryStream(imageByte);
Image image = Image.FromStream(ms);
it may help you..

Convert ImageSource to Base64String - WP8

am working on WP8application, I have few images in location Resources\Graphics\ i am trying to display images from these folder, but its not picking the path.
Here is my code :
<img src=\"/Resources;component/Graphics/"+ImageName).Append("\" ") this is in my string which i am using in my WebBrowserControl.
WebBrowserControl.NavigateToString(html); // here html is a string which has all the html code in it.
But its not display the images.
So i want to convert the ImageSource --Resources;component/Graphics/"+ImageName to Base64String how to do it?
I have looked into many examples but none of them is compatible for WP8.

You can get StreamInfo by using this:
Application.GetResourceStream(new Uri("Resources;component/Graphics/"+ImageName", System.UriKind.Relative));
Then you can read this stream into an byte array. After that, use Convert.ToBase64String() to get what you want. Try this. Maybe you can read the MSDN document to find how to use Stream.
var img = Application.GetResourceStream(new Uri("Resources;component/Graphics/"+ImageName", System.UriKind.Relative));
var buffer = new byte[img.Stream.Length];
img.Stream.Seek(0, SeekOrigin.Begin);
img.Stream.Read(buffer, 0, buffer.Length);
var base64 = Convert.ToBase64String(buffer);

It's very simple - load your image into a byte array and call
System.Convert.ToBase64String(imageArray).
That being said, this will not result in displaying the image. The NavigateToString requires html. See documentation

This is my code
byte[] bytearray = null;
using (var ms = new MemoryStream())
{
if (bmp != null)
{
var wbitmp = new WriteableBitmap(bmp);
wbitmp.SaveJpeg(ms, 46, 38, 0, 100);
bytearray = ms.ToArray();
}
}
if (bytearray != null)
{
// image base64 here
string btmStr = Convert.ToBase64String(bytearray);
}

issue with saved image in a particular location in c#

I am able to convert image to base64 string and base64 string to image . And I am saving the image to a particular location. If I run for the first time, I am getting the correct image file which I gave as input. but from the second run, whatever may be the input image I pass, I am getting only the first input image.
Desired output :
I need to get back the input image that I passed.
conversion code :
public string ImageToBase64(Image image, ImageFormat format)
{
using (MemoryStream ms = new MemoryStream())
{
// Convert Image to byte[]
image.Save(ms, format);
byte[] imageBytes = ms.ToArray();
// Convert byte[] to Base64 String
string base64String = Convert.ToBase64String(imageBytes);
return base64String;
}
}
public Image Base64ToImage(string base64String)
{
// Convert Base64 String to byte[]
byte[] imageBytes = Convert.FromBase64String(base64String);
MemoryStream ms = new MemoryStream(imageBytes, 0,
imageBytes.Length);
// Convert byte[] to Image
ms.Write(imageBytes, 0, imageBytes.Length);
Image image = Image.FromStream(ms, true);
return image;
}
save file code :
public void retreiveAndSaveImgFile(string base64formofstr)
{
Console.WriteLine("the incoming string :: " + base64formofstr.Length);
/* Bitmap bitmap = new Bitmap(Base64ToImage(base64formofstr));
Bitmap newBitmap = new Bitmap(bitmap);
newBitmap.SetResolution(150, 150); // resolution of the original image for which the zone template is created
newBitmap.Save("D:\\Suraya\\TesttogetCorrectPutput\\MICR_SAMPLE.tif", ImageFormat.Tiff);*/
Base64ToImage(base64formofstr).Save("D:\\Suraya\\TesttogetCorrectPutput\\MICR_SAMPLE.tif");
}
Please help me in resolving this problem.

I am not that smart with all of this but till I understand the problem you have is because of cache... As you are using the same name all time, it shows the output from the cache instead of conversion..
First Alternate is to add a time stamp to the name of image..
Second Alternate is to force the browser to reload the complete page instead of showing it from the cache..