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Image fingerprint to compare similarity of many images
...mage - and can be implemented quite efficiently. Subtracting one histogram from another will produce a new historgram which you can process to decide how similar two images are. Histograms, because the only evaluate the distribution and occurrence of luminosity/color information handle affine transf...
What's the most efficient test of whether a PHP string ends with another string?
... I ran into a bug today which will break the solution that you have given from PHP 5.5.11 and onwards. bugs.php.net/bug.php?id=67043
– user2180613
Jul 29 '14 at 21:18
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Autoreload of modules in IPython [duplicate]
...hon
In [1]: %load_ext autoreload
In [2]: %autoreload 2
In [3]: from foo import some_function
In [4]: some_function()
Out[4]: 42
In [5]: # open foo.py in an editor and change some_function to return 43
In [6]: some_function()
Out[6]: 43
The module was reloaded without r...
C++ Returning reference to local variable
... problem when returning reference to a local variable. How is it different from func2()?
3 Answers
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Repairing Postgresql after upgrading to OSX 10.7 Lion
...ompletely borked when trying to connect to the psql server. When I do it from the command line using
15 Answers
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Stop LastPass filling out a form
Is there a way to prevent the LastPass browser extension from filling out a HTML-based form with a input field with the name "username"?
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Convert blob URL to normal URL
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A URL that was created from a JavaScript Blob can not be converted to a "normal" URL.
A blob: URL does not refer to data the exists on the server, it refers to data that your browser currently has in memory, for the current page. It will not be av...
Where did the name `atoi` come from?
...ble finding any official source on it... but in this listing of man pages from Third Edition Unix (1973) collected by Dennis Ritchie himself, it does contain the line:
atoi(III): convert ASCII to integer
In fact, even the first edition Unix (ca 1971) man pages list atoi as meaning Ascii to I...
How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?
...uses express, socket.io, node_redis and last but not least the sample code from media fire.
Install node.js+npm(as non root)
First you should(if you have not done this yet) install node.js+npm in 30 seconds (the right way because you should NOT run npm as root):
echo 'export PATH=$HOME/local/bin:...
Collections.emptyMap() vs new HashMap()
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From Effective Java, Item #43 - "Return empty arrays or collections, not null" demonstrates returning an empty collection and perhaps even demonstrates using these emptyList(), emptySet(), and emptyMap() methods on the Colle...