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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
... here is a sample code in Mathematica:
f = Import["http://thwartedglamour.files.wordpress.com/2010/06/my-coffee-table-1-sa.jpg"]
f = ImageResize[f, ImageDimensions[f][[1]]/4]
g = MedianFilter[ColorConvert[f, "Grayscale"], 2]
h = DeleteSmallComponents[Thinning[
Binarize[ImageSubtract[Dilation[g...
In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
... sensible. If failure is a result of unexpected coditions (e.g. saving to file) than an exception is appropriate. Whether bad developers can shoot themselves in the foot is a marginal concern, because they'll find a way regardless.
– Andrzej Doyle
Aug 13 '10 ...
How many socket connections can a web server handle?
...per connection, it would need 64GB of RAM. If each client needs to read a file, the disk or storage array access load becomes much larger than those devices can handle. If a server needs to fork one process per connection then the OS will spend the majority of its time context switching or starvin...
Requirejs domReady plugin vs Jquery $(document).ready()?
...');
});
Note that loading and executing are different; you want all your files to load as soon as possible, it's the execution of the contents that is time sensitive.
If you omit the !, then it's just a normal module that happens to be a function, which can take a callback that won't execute befo...
How to check which locks are held on a table
...ses on a SQL Server instance. Typically you'd run this alongside a SQL Profiler instance to find a blocking process and look at the most recent command that spid issued in profiler.
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Named Branches vs Multiple Repositories
...uick experiments' - No, they are not! What if you've got a few tousands of files in repo? Cloning will take ages (anytime above 1 minute) while branch switching just a moment (<1second). Still using named branches will pollute changelog. Isn't it a dead end? Or I am missing something?
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Learn C first before learning Objective-C [closed]
...ariables for objects use pointers, Garbage Collectors use malloc and free, files are locked using OS handles; when something goes wrong in a Java or C# application knowing these fundamentals can greatly improve your understanding of what went wrong. Understanding resource allocation that will be per...
How to put the legend out of the plot
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Note that if you want to save the figure to a file, you should probably store the object returned, i.e. legend = ax.legend() and later fig.savefig(bbox_extra_artists=(legend,))
– coldfix
Oct 5 '17 at 17:30
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Can JSON start with “[”?
...rskell - Drackir: I was trying to find a visual representation of the JSON file structure and all the rules. Your comment helped me find exactly what I needed. json.org/json-en.html Thanks a ton, man. Your comment got me to where I needed to go. :)
– GroggyOtter
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What is the difference between JDK dynamic proxy and CGLib?
...he proxy will be destroyed and we will only have interface and bean on the file system.
In the above example we have interface. But in most of implementation of interface is not best. So bean does not implement an interface, in that case we uses inheritance:
In order to generate such proxies, ...