Out of Memory Exception when resizing Bitmap

Question

So the function works great for smaller image but as I try to increase the size of the resized Image eventually I will run into an Out of Memory Exception. The function I currently have is: public static Bitmap ResizeImage(Bitmap srcImage int width int height) { Bitmap result = new Bitmap(width height); using (Graphics g = Graphics.FromImage((Image)result)) g.DrawImage(srcImage new Rectangle(0 0 width height) new Rectangle(0 0 srcImage.Width srcImage.Height) GraphicsUnit.Pixel); return result; } Any thoughts to improve/change the method to not get the OOM Exception?

Lalit M · Answer

try this steps 1. Set to false in web.config and re-test. 2. Check if .NET 2.0 SP 1 is installed on this box. 3.Try setting the worker process to use workstation garbage collector. more info 4.Increase the memory available to the worker process. Set the /3GB switch. for info 5.Set IIS 6.0 Maximum used memory (in megabytes) property on the application pool to 1800 MB

Pavan Pareta · Answer

Hi I have modified your code while resizing created new bitmap object that's why you are getting  Out of Memory Exception. so use this approch like result Bitmap use as a private and while resizing the bitmap need to dispose and null the object and create new object. private static Bitmap result = null; public static Bitmap ResizeImage(Bitmap srcImage int width int height) { if (result!=null) { result.Dispose(); result = null; } result = new Bitmap(width height); using (Graphics g = Graphics.FromImage((Image)result)) g.DrawImage(srcImage new Rectangle(0 0 width height) new Rectangle(0 0 srcImage.Width srcImage.Height) GraphicsUnit.Pixel); return result; } Hope this may be help.