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Extracting text OpenCV
...;
#define INPUT_FILE "1.jpg"
#define OUTPUT_FOLDER_PATH string("")
int _tmain(int argc, _TCHAR* argv[])
{
Mat large = imread(INPUT_FILE);
Mat rgb;
// downsample and use it for processing
pyrDown(large, rgb);
Mat small;
cvtColor(rgb, small, CV_BGR2GRAY);
...
How do you clear the SQL Server transaction log?
...he shrink options in maintenance plans, they're awful).
DECLARE @path NVARCHAR(255) = N'\\backup_share\log\testdb_'
+ CONVERT(CHAR(8), GETDATE(), 112) + '_'
+ REPLACE(CONVERT(CHAR(8), GETDATE(), 108),':','')
+ '.trn';
BACKUP LOG foo TO DISK = @path WITH INIT, COMPRESSION;
Note that \\back...
Why does Clojure have “keywords” in addition to “symbols”?
... and global vars...
Keywords are generally used as lightweight "constant strings", e.g. for the keys of a hash-map or the dispatch values of a multimethod. Symbols are generally used to name variable and functions and it's less common to manipulate them as objects directly except in macros and su...
What is the “right” way to iterate through an array in Ruby?
...out creating an array (consider 0..1000000000)
working for any Range (e.g. Strings, not just Integers)
without using any extra object oriented power (i.e. no class modification)
I believe this is impossible without defining a pred method, which means modifying the Range class to use it. If you ca...
Reducing MongoDB database file size
...
UPDATE: with the compact command and WiredTiger it looks like the extra disk space will actually be released to the OS.
UPDATE: as of v1.9+ there is a compact command.
This command will perform a compaction "in-line". It will still need some extra space, but not as much.
MongoDB comp...
Google Maps API 3 - Custom marker color for default (dot) marker
...ed symbols, you can craft any shape of any color by specifying an SVG path string (Spec).
To use it, instead of setting the 'icon' marker option to the image url, you set it to a dictionary containing the symbol options. As example, I managed to craft one symbol that is quite similar to the standar...
Why is the minimalist, example Haskell quicksort not a “true” quicksort?
...implementation of putStrLn works by copying the characters of the argument String into to an output buffer. But when it enters this loop, show has not run yet. Therefore, when it goes to copy the first character from the string, Haskell evaluates the fraction of the show and quicksort calls needed t...
Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
...=====================
7. Consider the excellent http://www.fail2ban.org
8. Extra
SSH tunnel to access a MySQL (bind = 127.0.0.1) server
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How to have comments in IntelliSense for function in Visual Studio?
In Visual Studio and C#, when using a built in function such as ToString(), IntelliSense shows a yellow box explaining what it does.
...
Why aren't pointers initialized with NULL by default?
... then assign.
So now we have the situation that the compiler has added an extra instruction to the code that initializes the variable to NULL then later the developer code is added to do the correct initialization. Or under other conditions the variable is potentially never used. A lot of C++ devel...