System.OutOfMemoryException: Optimization suggestions?

[deivydas321]

Hello,
I have this method where I resize image(max size 10MB) to 1 MB.

public static Stream ResizeToTargetFileSize(IFormFile file, long targetBytes)
       {
           var imageFormat = ImageFormatFactory.GetImageFormat(file.ContentType, file.FileName);
           var outputStream = new MemoryStream();
           using (var stream = file.OpenReadStream())
           using (var image = Image.Load(stream))
           {
               if (stream.Length > targetBytes)
               {
                   var newSize = GetScaledSize(image, imageFormat.GetFactor(stream.Length, targetBytes));
                   image.Mutate(x => x.Resize(newSize));
               }
               image.Save(outputStream, imageFormat.Encoder);
           }
           outputStream.Position = 0;
           return outputStream;
       }

However, when I upload file 9.7MB size I am getting memory error. Are there any suggestions how to optimize memory by changing this code?
New Size is Width * 0.3, Height*0.3.

The image:

[JimBobSquarePants]

Please see #805

[antonfirsov]

also #642

[deivydas321]

I checked the mentioned issues but didn't find any proper solution or workaround. I am working on ASP .NET CORE app and when I upload and resize images(size 10 MB) the application memory instantly increases to 2-3GB would be there any suggestions how to avoid this? I have tried memory management methods from SixLabors/docs/blob/master/articles/ImageSharp/MemoryManagement.md page but it didn't seems to help. The code for resizing is the same as above.

[JimBobSquarePants]

Questions on the Gitter channel please. We’re really clear about this in the issue template you deleted.