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How to detect a Christmas Tree? [closed]

... can be broken down into about 3 steps. First I apply a threshold (or actually, the logical "or" of two separate and distinct thresholds). As with many of the other answers, I assumed that the Christmas tree would be one of the brighter objects in the scene, so the first threshold is just a simple...
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Why does 'continue' behave like 'break' in a Foreach-Object?

...each that helps to make this conversion easy and make mistakes easy, too). All continues should be replaced with return. P.S.: Unfortunately, it is not that easy to simulate break in ForEach-Object. share | ...
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unit testing of private functions with mocha and node.js

... If the function is not exported by the module, it cannot be called by test code outside the module. That's due to how JavaScript works, and Mocha cannot by itself circumvent this. In the few instances where I determined that testing a private function is the right thing to do, what I'...
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sizeof single struct member in C

... char text[member_size(Parent, text)]; int used; } Child; I'm actually a bit surprised that sizeof((type *)0)->member) is even allowed as a constant expression. Cool stuff. share | impr...
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Can you test google analytics on a localhost address?

...ersal Analytics - analytics.js Google released a new version of analytics called "Universal Analytics" (late 2012 or early 2013). As I write, this the program is still in BETA so the above code is still recommended for most users with existing installations of Google Analytics. However, for new deve...
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How do I install cygwin components from the command line?

... the Cygwin package similar to apt-get on Debian or yum on redhat that allows me to install components from the command line? ...
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how to bypass Access-Control-Allow-Origin?

I'm doing a ajax call to my own server on a platform which they set prevent these ajax calls (but I need it to fetch the data from my server to display retrieved data from my server's database). My ajax script is working , it can send the data over to my server's php script to allow it to process. H...
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Using Caps Lock as Esc in Mac OS X

...ing bugs. Here's a screenshot to show a few of the (hundreds of) pre-selectable options: PQRS also has a great utility called NoEjectDelay that you can use in combination with KeyRemap4MacBook for reprogramming the Eject key. After a little tweaking I have mine set to toggle the AirPort Wifi. T...
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How do I provide custom cast support for my class?

...ou want users to have to cast it or whether you want it to happen automagically. Generally, one direction will always work, that's where you use implicit, and the other direction can sometimes fail, that's where you use explicit. The syntax is like this: public static implicit operator dbInt64(Byt...
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How does BLAS get such extreme performance?

...e optimization. This boost significantly exceeds the second boost from parallelism and other hardware optimizations. By the way, most (or even all) of the high performance BLAS implementations are NOT implemented in Fortran. ATLAS is implemented in C. GotoBLAS/OpenBLAS is implemented in C and i...