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Memory limited image processing in server


Memory limited image processing in server

By : Gerardo Zachary
Date : January 10 2021, 01:49 PM
I wish did fix the issue. I would suggest considering moving the image processing part to a separate JVM which you communicate with from your main application using RMI or similar.
This allows you to tune the processing JVM separately from the main JVM, and perhaps even create a distributed system if needed on multiple machines. This might also allow you to manage the conversions so that only a few happen at the same time allowing bigger individual images.
code :


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Limited memory usage of sql server 2008 express?

Limited memory usage of sql server 2008 express?


By : Adrienne Boswell
Date : March 29 2020, 07:55 AM
To fix this issue look here and here
essentially sp_configure 'max server memory' I think
Memory warning received while processing the >1.4MB size image in Core Image filters ios?

Memory warning received while processing the >1.4MB size image in Core Image filters ios?


By : user5511237
Date : March 29 2020, 07:55 AM
hope this fix your issue Maybe you can "split" your large image into smaller parts, apply the filer on each of them, and combine them back to a large image?
code :
UIImage *image = [UIImage imageWithContentsOfFile:imagePath]; // The Big image
NSMutableArray *croppedImages = [NSMutableArray array];
CGSize imageSize = image.size;
CGSize cropSize = CGSizeMake(500, 500); // The size of each "small image"
// Step 1: Produce the small images and save to disk
for (CGFloat x = 0; x < imageSize.width; x += cropSize.width)
{
    for (CGFloat y = 0; y < imageSize.height; y += cropSize.height)
    {
        UIGraphicsBeginImageContext(cropSize);
        [image drawAtPoint:CGPointMake(-x, -y)];
        UIImage *cropped = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext();

        NSString *path = [NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"cropped_%f_%f.png",x,y]];
        NSData *imageData = UIImagePNGRepresentation(cropped);
        [imageData writeToFile:path atomically:YES];
        imageData = nil;

        [croppedImages addObject:path];
    }
}
// Release the big image (assume we are using ARC)
image = nil;
// Step 2: Apply the filter to the small images and re-save them
for (NSString *path in croppedImages)
{
    UIImage *img = [UIImage imageWithContentsOfFile:path];

    // Apply your filter to img here

    NSData *imageData = UIImagePNGRepresentation(img);
    [imageData writeToFile:path atomically:YES];
    imageData = nil;
}
// Step 3: Combine the small images back to a big one
UIGraphicsBeginImageContext(imageSize);
for (CGFloat x = 0; x < imageSize.width; x += cropSize.width)
{
    for (CGFloat y = 0; y < imageSize.height; y += cropSize.height)
    {
        NSString *path = [NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"cropped_%f_%f.png",x,y]];
        UIImage *img = [UIImage imageWithContentsOfFile:path];

        [img drawAtPoint:CGPointMake(x, y)];
    }
}
UIImage *finalImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
// Step 4: Optionally remove the temporary files
for (NSString *path in croppedImages)
{
    [[NSFileManager defaultManager] removeItemAtPath:path error:NULL];
}
transferring big files to a limited memory server

transferring big files to a limited memory server


By : j pate
Date : March 29 2020, 07:55 AM
I hope this helps . Tornado needs some work before it can stream very large uploads, see issue 231. I'd suggest Nginx's HttpUpload module: Nginx uploads user files into server-side temp files, then notifies your application so you can decide what to do with the file.
Are Apache Spark or an SQL server solutions for memory-limited local data manipulation?

Are Apache Spark or an SQL server solutions for memory-limited local data manipulation?


By : Cleber Pereira da Si
Date : March 29 2020, 07:55 AM
wish helps you Both Spark and SQL Server can absolutely handle and process larger data than fits into RAM.
Installing these tools shouldn't be a big deal. Uninstalling a local Spark installation is just deleting a simple directory.
How to fix memory issue with image processing?

How to fix memory issue with image processing?


By : saurabh srivastava
Date : March 29 2020, 07:55 AM
wish helps you I'm creating gif splitter that returns image sequence from given gif file, it works well with small size gifs and everything look as desired but with big files (bigger than 500×500 px) causing memory issue. , This is the source of one of your main problems:
code :
var frameList = [UIImage]() 
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