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Simple Digit Recognition OCR in OpenCV-Python
... 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 explained in the paperLetter Recognition Using Holland-Style Adaptive Class...
maximum value of int
...
I know it's an old question but maybe someone can use this solution:
int size = 0; // Fill all bits with zero (0)
size = ~size; // Negate all bits, thus all bits are set to one (1)
So far we have -1 as result 'till size is a ...
Do sealed classes really offer performance Benefits?
...are complex rules regarding calling type, virtual/nonvirtual, and I don't know them all so I can't really outline them for you, but if you google for sealed classes and virtual methods you might find some articles on the topic.
Note that any kind of performance benefit you would obtain from this le...
Determine if Android app is being used for the first time
...SET_APP_RUN_FIRST_TIME, "FIRST");
return App_runFirst;
}
}
Now Open Your Activity & Initialize .
private SharedPreference sharedPreferenceObj; // Declare Global
Now Call this in OnCreate section
sharedPreferenceObj=new SharedPreference(YourActivity.this)...
Is explicitly closing files important?
...ot good practice to leave your files open. In fact, in cpython 3 you will now get warnings that the system had to close files for you if you didn't do it.
Moral: Clean up after yourself. :)
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How can I return two values from a function in Python?
......
>> ret_val = test()
>> print ret_val
(r1, r2, r3, ....)
now you can do everything you like with your tuple.
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Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
...ng homebrew and I somehow managed to break everything. I can't do anything now, this is what I get when I try to do bundle install:
...
Does SQLAlchemy have an equivalent of Django's get_or_create?
... new record, it will raise IntegrityError. The whole thing gets messed up, now we don't know what actually happened and we get another error, that no record is found.
– rajat
Oct 8 '15 at 19:31
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How can I index a MATLAB array returned by a function without first assigning it to a local variable
...
well what do you know! though i agree it's pretty ugly, and probably less readable than a temp-var solution. +1 for impressive obscure matlab knowledge!
– second
Sep 2 '10 at 16:02
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Add a property to a JavaScript object using a variable as the name?
...hen we've had ES2016 and soon we'll have ES2017, they're on a yearly cycle now.
– T.J. Crowder
Apr 18 '17 at 16:06
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