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What does template mean?
...d int x = N;
In fact, we can create algorithms which evaluate at compile time (from Wikipedia):
template <int N>
struct Factorial
{
enum { value = N * Factorial<N - 1>::value };
};
template <>
struct Factorial<0>
{
enum { value = 1 };
};
// Factorial<4>:...
Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition
... few hundred ms for SIFT, SURF is bit faster, but it not suitable for real-time applications. ORB uses FAST which is weaker regarding rotation invariance.
The original papers
SURF: Speeded Up Robust Features
Distinctive Image Features
from Scale-Invariant Keypoints
ORB: an efficient alternative to ...
Update Git submodule to latest commit on origin
... initially
git submodule add ssh://bla submodule_dir
git submodule init
# Time passes, submodule upstream is updated
# and you now want to update
# Change to the submodule directory
cd submodule_dir
# Checkout desired branch
git checkout master
# Update
git pull
# Get back to your project root
...
Convert timestamp to date in MySQL query
I want to convert a timestamp in MySQL to a date.
10 Answers
10
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How to compare type of an object in Python?
...st, avoid all type comparisons. They're very, very rarely necessary. Sometimes, they help to check parameter types in a function -- even that's rare. Wrong type data will raise an exception, and that's all you'll ever need.
All of the basic conversion functions will map as equal to the type func...
What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...ue with Facebook. I agree, it drives me up the (non-Facebook) wall all the time.
– BoltClock♦
Oct 15 '10 at 3:22
...
Using awk to remove the Byte-order mark
...t have the privilege to install software on company computer. Took lots of time today, until I figure out the alternative: Using Notepad++ with PythonScript plugin . superuser.com/questions/418515/… Thanks anyway!
– Hoàng Long
May 13 '15 at 7:22
...
How to check if a String contains another String in a case insensitive manner in Java?
... tests a predefined substring.
Results (by calling the method 10 million times):
Our method: 670 ms
2x toLowerCase() and contains(): 2829 ms
1x toLowerCase() and contains() with cached substring: 2446 ms
Regexp: 7180 ms
Regexp with cached Pattern: 1845 ms
Results in a table:
...
How do I repeat an edit on multiple lines in Vim?
...tes line wise in visual mode. I think the visual mode in this case can sometimes be convenient to select a line range. But commands and macros are more flexible and powerful in this case.
– Bohr
Oct 2 '13 at 2:12
...
How do I read the source code of shell commands?
... written with. I've gained some experience using them and now I think it's time to interact with my machine at a deeper level.
...