Out Of Memory exception on System.Drawing.Image.FromFile()

user_102147 0
Viewed 85273

I have an image uploader and cropper which creates thumbnails and I occasionally get an Out Of Memory exception on the following line:

Dim bm As Bitmap = System.Drawing.Image.FromFile(imageFile)

The occurance of the error is tiny and very rare, but I always like to know what might be causing it. The imageFile variable is just a Server.MapPath to the path of the image.

I was curious if anyone had experience this issue previously and if they had any ideas what might be causing it? Is it the size of the image perhaps?

I can post the code if necessary and any supporting information I have, but would love to hear people's opinions on this one.

bitmap image asp.net
13 Answers

It's worth knowing that OutOfMemoryException doesn't always really mean it's out of memory - particularly not when dealing with files. I believe it can also happen if you run out of handles for some reason.

Are you disposing of all your bitmaps after you're done with them? Does this happen repeatably for a single image?

user_226560

If this wasn't a bad image file but was in fact the normal issue with Image.FromFile wherein it leaves file handles open, then the solution is use Image.FromStream instead.

using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
   using (Image original = Image.FromStream(fs))
   {
      ...

Using an explicit Dispose(), a using() statement or setting the value to null on the bitmap doesn't solve the issue with Image.FromFile.

So if you App runs for a time and opens a lot of files consider using Image.FromStream() instead.

user_2243700

This happens when the image file is corrupted. It is a bad error message, because memory has nothing to do with it. I haven;t worked out the coding, but a try/catch/finally will stop the program from abending.

user_115222770

If you're serving from IIS, try recycling the Application Pool. This solved a similar image upload "Out of Memory" error for me.

user_582790

I created a minimal form example that still gives me errors.

        private void button1_Click(object sender, EventArgs e)
    {
        string SourceFolder = ImageFolderTextBox.Text;
        string FileName = "";
        DirectoryInfo Mydir = new DirectoryInfo(SourceFolder);
        FileInfo[] JPEGS = Mydir.GetFiles("*.jpg");
        for (int counter = 0; counter < JPEGS.Count(); counter++)
        {
            FileName = Mydir + "\\" + JPEGS[counter].Name;
            //using (Image MyImage = System.Drawing.Image.FromFile(FileName))
            using (FileStream fs = new FileStream(FileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
            {
                StatusBtn.BackColor = Color.Green;
            }
        }
    }

I tried both the commented out line using Image.FromFile() as well as the line using FileStream(). Both produced file errors.

The Image.FromFile() error was: System.OutOfMemoryException: 'Out of Memory'

The filestream() error was: System.UnaurthorizedAccessException: 'Access to the path 'E:\DCIM\100Canon\dsc_7218.jpg' is denied.

I placed a Breakpoint just prior to the lines producing the error and I am able to open the image file using the Windows image viewer. I then closed the viewer and after I advanced to the next line and get the error, I can no longer view the image with the Windows viewer. Instead, I get a message that I do not have permission to access the file. I am able to delete the file.

This error is repeatable. I've done it over 10 times. Each time, after I get the error, I delete the file used for FileName.

All files were verified to be non-corrupt.

My original code that used Image.FromFile() worked fine when I compiled it 2 years ago. In fact, the .exe file runs just fine. I made a minor change somewhere else in the code and was surprised to find that the code would not compile without this error. I tried the FileStream() method based on the information on this page.

user_72021050
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