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Algorithm to compare two images
...).
http://en.wikipedia.org/wiki/RGB_color_space
http://upvector.com/index.php?section=tutorials&subsection=tutorials/colorspace
Another example involves something called the Hough Transform. This transform essentially decomposes an image into a set of lines. You can then take some of the '...
What's the difference between equal?, eql?, ===, and ==?
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You might be familiar with === as an equality operator in Javascript and PHP, but this just not an equality operator in Ruby and has fundamentally different semantics.
So what does === do?
=== is the pattern matching operator!
=== matches regular expressions
=== checks range membership
=== che...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
...omment so): More detail? Use perf [1], [2]. [1] perf.wiki.kernel.org/index.php/Main_Page [2] brendangregg.com/perf.html
– kaiwan
May 9 '15 at 7:46
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Should I use Vagrant or Docker for creating an isolated environment? [closed]
... application in a wide variety of envionment configs (different databases, php versions, caching backends etc), then I can easily do that with docker containers. But I cant see if my application will run properly in a windows IIS env, or on BSD or OSX.
– Mixologic
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Map vs Object in JavaScript
...often a pain with non-scalar types where you have to deal with things like PHP merges Array/Map with Object using A/M for properties and JS merges Map/Object with Array extending M/O. Merging complex types is the devil's bane of high level scripting languages.
So far these are largely issues around ...
How do I properly clean up Excel interop objects?
...remeVBTalk .NET Office Automation forum, here: xtremevbtalk.com/showthread.php?t=303928.
– Mike Rosenblum
Jan 24 '09 at 15:15
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Is either GET or POST more secure than the other?
...ntById('a').submit()"><form id="a" action="http://example.com/delete.php" action="post"><input type="hidden" name="id" value="12"></form> isn't really that hard to submit a post somewhere automatically by clicking a link (that contains that html)
– FryGuy
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An example of how to use getopts in bash
...ic version of EspoCRM
-r, -rebuild, --rebuild Rebuild php vendor directory using composer and compiled css using grunt
-V, -verbose, --verbose Run script in verbose mode. Will print out each step of execution.
EOF
# EOF is found above and hence cat command ...
Getting started with Haskell
... to stick.
Now, in learning various imperative/OO languages (like C, Java, PHP), exercises have been a good way for me to go. But since I don't really know what Haskell is capable of and because there are many new concepts to utilize, I haven't known where to start.
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Peak signal detection in realtime timeseries data
...15)
JavaScript (Dirk Lüsebrink)
TypeScript (Jerry Gamble)
Perl (Alen)
PHP (radhoo)
Rules of thumb for configuring the algorithm
lag: the lag parameter determines how much your data will be smoothed and how adaptive the algorithm is to changes in the long-term average of the data. The more st...