System.Drawing.Image.FromFile "System.OutOfMemoryException: Out of memory."

Question

I get these errors every once in a while and I am not sure why. This code executes thousands of times a day and Ill get these errors every once in a while. One of the images is 94.9 KB, 1024x1024 image. The image is being read from an Azure File Storage disk via UNC Path.

System.OutOfMemoryException: Out of memory.

Generated: Sat, 23 Apr 2016 15:09:54 GMT

System.OutOfMemoryException: Out of memory.
   at System.Drawing.Image.FromFile(String filename, Boolean useEmbeddedColorManagement)
   at System.Drawing.Image.FromFile(String filename)
   at Tournaments.ImageHandler.ProcessRequest(HttpContext context) in C:\Development\Exposure\Main\Websites\Tournaments\ImageHandler.ashx.cs:line 64
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Actual Code

 using (var image = Image.FromFile(path))
 {
 }

I posted the code above. Memory leak within the .NET framework? — Mike Flynn
– Mike Flynn, Commented Apr 23, 2016 at 15:20
The memory leak is likely in Tournaments.ImageHandler.ProcessRequest, however, this can also be caused by a image that is just too large, or that has bad header data. — Scott Chamberlain
– Scott Chamberlain, Commented Apr 23, 2016 at 15:23
Well I opened the same URL in the browser and loaded fine. It is a big image though but why would this cause this? The image really isnt that large as I posted a size of one above. — Mike Flynn
– Mike Flynn, Commented Apr 23, 2016 at 15:25
Note that GDI+ is really bad at identifying the reason for the OutOfMemoryException. It could be that the Image Header is currupted, or a number of different reasons! Check out the answer on this question! — MrPaulch
– MrPaulch, Commented Apr 23, 2016 at 15:58

Mike Flynn · Accepted Answer · 2021-07-26 13:21:25Z

2

This seemed to fix my issue as it doesn't hold a reference to it this way.

using (var memoryStream = new MemoryStream(File.ReadAllBytes(path)))
            {
                using (var image = Image.FromStream(memoryStream))
                {
                  
                    byte[] bytes;

                
                      
                        using (var memoryStream1 = new MemoryStream())
                        {
                            image.Save(memoryStream1, GetImageFormat(Path.GetExtension(path)));
                            bytes = memoryStream1.ToArray();
                        }
                    

                }
            }
    }
    
      private ImageFormat GetImageFormat(string extension)
            {
                switch (extension.ToLower())
                {
                    case ".png":
                        return ImageFormat.Png;
                    default:
                        return ImageFormat.Jpeg;
                }
            }

edited Jul 26, 2021 at 13:21

answered May 6, 2016 at 22:57

Mike Flynn

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2 Comments

Adrian Hood Sr Over a year ago

This fix did not work for me. I have the same access denied or Out of Memory error as if I used using (Image MyImage = System.Drawing.Image.FromFile(FileName)) or using (FileStream fs = new FileStream(FileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))

Mike Flynn Over a year ago

Looks like I am using different code now.

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