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Simple Digit Recognition OCR in OpenCV-Python
...e KNearest for simple OCR purposes).
1) My first question was about letter_recognition.data file that comes with OpenCV samples. I wanted to know what is inside that file.
It contains a letter, along with 16 features of that letter.
And this SOF helped me to find it. These 16 features are explain...
Rebase a single Git commit
... commits you don't want to include in the rebase.
git rebase -i <target_branch> where target_branch is the branch you want to rebase on to
Then you will edit the file that is opened and pick the commits you do want and drop (or d for short) all the commits you don't want to bring along.
...
How do I execute a string containing Python code in Python?
....stderr = codeErr
exec code
# restore stdout and stderr
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
print f(4)
s = codeErr.getvalue()
print "error:\n%s\n" % s
s = codeOut.getvalue()
print "output:\n%s" % s
codeOut.close()
codeErr.close()
...
How do I get class name in PHP?
...j->getNameOfClass();
?>
For older versions of PHP, you can use get_class().
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Get protocol + host name from URL
In my Django app, I need to get the host name from the referrer in request.META.get('HTTP_REFERER') along with its protocol so that from URLs like:
...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
...sing the first way only though. The other two ways are way too wordy.
test_dict = {}
if not test_dict:
print "Dict is Empty"
if not bool(test_dict):
print "Dict is Empty"
if len(test_dict) == 0:
print "Dict is Empty"
...
Vim: apply settings on files in directory
...
@JasonMcCarrell My implementation of local_vimrc and Markus "embear" Braun's one have support for blacklist, whitelist... If you just need to specify how indentation is done, may be EditorConfig-vim plugin would be a better choice.
– Luc Hermitt...
Oracle “(+)” Operator
...e a link at the official Oracle documentation: docs.oracle.com/html/A95915_01/sqopr.htm
– Vargan
Jun 3 '15 at 16:55
...
Constructor initialization-list evaluation order
...ped aborting. This is an example of the syntax I'm using. The thing is, a_ needs to be initialized before b_ in this case. Can you guarantee the order of construction?
...
What are the rules for the “…” token in the context of variadic templates?
...rgs...) above!
You can use ... to initialize an array also as:
struct data_info
{
boost::any data;
std::size_t type_size;
};
std::vector<data_info> v{{args, sizeof(T)}...}; //pattern = {args, sizeof(T)}
which is expanded to this:
std::vector<data_info> v
{
{arg0, sizeo...