C#•3mo ago

Getting Out of Memory Exception when loading in images

I get a system out of memory error after calling Image.FromFile in GetTarget(). How should I fix this?

        public ImageManager()
        {
            _tiles = new List<Bitmap>();
            GetTarget();
            LoadAll();
        }

        private void GetTarget()
        {
            _target = (Bitmap)Image.FromFile(@"C:\Users\timo2\OneDrive\Desktop\The Grind\Personal Projects\PhotoMosaic\PhotoMosaicGenerator\downloaded_images\image_20.jpg");
        }

        public ImageManager()
        {
            _tiles = new List<Bitmap>();
            GetTarget();
            LoadAll();
        }

        private void GetTarget()
        {
            _target = (Bitmap)Image.FromFile(@"C:\Users\timo2\OneDrive\Desktop\The Grind\Personal Projects\PhotoMosaic\PhotoMosaicGenerator\downloaded_images\image_20.jpg");
        }

40 Replies

Kouhai•3mo ago

How big is the image?

TimOP•3mo ago

11KB it looks like

Kouhai•3mo ago

And it's height and width?

TimOP•3mo ago

612 x 369

Kouhai•3mo ago

Hmmm, that shouldn't cause any memory problems How much memory is the application using in diagnostic tools? (assuming you're using visual studio)

TimOP•3mo ago

https://gyazo.com/442f61778e2a17a95292027dda68a666

Gyazo

TimOP•3mo ago

Not really sure what any of this means so just ss'ed lol

TimOP•3mo ago

https://gyazo.com/5984512d0f4ef692abaab5f07b360c75

Gyazo

Kouhai•3mo ago

Actually, it seems like Image.FromFile throws Out Of Memory for if the file's format is invalid

TimOP•3mo ago

Ohh

Kouhai•3mo ago

TimOP•3mo ago

Why would it be invalid? Its a jpg

Kouhai•3mo ago

Then it's most likely a problem with the pixel format, can you try saving the image again with paint for example?

TimOP•3mo ago

It looks like that worked .. ? Agh I have like 20 photos i wanted to load in... I have to do this for all of them now?

Kouhai•3mo ago

Probably 😅

TimOP•3mo ago

😭 is there any better way to do this lol

Kouhai•3mo ago

If you have ImageMagick installed, sure you can write a script to do it automatically

TimOP•3mo ago

nah thats fine, i just meant would there be a way to use the existing images still like a diff method or smth

Kouhai•3mo ago

Oh, maybe you could try loading the image using ImageSharp

TimOP•3mo ago

Gothca thanks for the help

Kouhai•3mo ago

Load the images using ImageSharp then use Image.FromStream to load the images from ImageSharp's streams

TimOP•3mo ago

But woudl i be able to get it into a bitmap datatype like I do for this one

Kouhai•3mo ago

Yeah

TimOP•3mo ago

Ohh Is it sixlabors.imagesharp?

Kouhai•3mo ago

Yeah And loading an image just as simple as Image.Load, which will return an Image instance

TimOP•3mo ago

do you happen to know the method for imagesharp to load the images

Kouhai•3mo ago

using var image = Image.Load("IMAGE_PATH_GOES_HERE");

TimOP•3mo ago

        private void GetTarget()
        {
            var image = SixLabors.ImageSharp.Image.Load(@"C:\Users\timo2\OneDrive\Desktop\The Grind\Personal Projects\PhotoMosaic\PhotoMosaicGenerator\downloaded_images\image_17.jpg");
        
            _target = (Bitmap)System.Drawing.Image.FromStream(image);
        }

        private void GetTarget()
        {
            var image = SixLabors.ImageSharp.Image.Load(@"C:\Users\timo2\OneDrive\Desktop\The Grind\Personal Projects\PhotoMosaic\PhotoMosaicGenerator\downloaded_images\image_17.jpg");
        
            _target = (Bitmap)System.Drawing.Image.FromStream(image);
        }

this isnt right but its what i have so far what am i missing?

Kouhai•3mo ago

You need to save the ImageSharp's Image to a temporary stream So something like

var mem = new MemoryStream();
image.Save(mem, JpgFormat.Instance);
_target = (Bitmap)System.Drawing.Image.FromStream(mem);

var mem = new MemoryStream();
image.Save(mem, JpgFormat.Instance);
_target = (Bitmap)System.Drawing.Image.FromStream(mem);

TimOP•3mo ago

is jpgfromat a package? its not recogfnzied

Kouhai•3mo ago

Should be provided by ImageSharp

TimOP•3mo ago

hmm doesnt seem to work when i add that to it ah its jpeg lol

Kouhai•3mo ago

lmao my bad :kekYep:

TimOP•3mo ago

woohoo that all seemed to work!

Kouhai•3mo ago

:HYPERS:

TimOP•3mo ago

tyyy

Kouhai•3mo ago

Please make sure you have using before var image Just to make sure the image instance is disposed

TimOP•3mo ago

how does using worked in that context?

Kouhai•3mo ago

It would look something like this using var image = SixLabors.ImageSharp.Image.Load(....); using essentially is just syntactic sugar that ensures Dispose is called on the image instance, that way you won't leak resources

TimOP•3mo ago

ahh ok awesome tysm !

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Getting Out of Memory Exception when loading in images