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How can I sharpen an image in OpenCV?
How can I sharpen an image using OpenCV ?
9 Answers
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Check if a string matches a regex in Bash script
One of the arguments that my script receives is a date in the following format: yyyymmdd .
5 Answers
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Java default constructor
What exactly is a default constructor — can you tell me which one of the following is a default constructor and what differentiates it from any other constructor?
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conditional unique constraint
I have a situation where i need to enforce a unique constraint on a set of columns, but only for one value of a column.
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Cleaner way to do a null check in C#? [duplicate]
Suppose, I have this interface,
19 Answers
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Java SafeVarargs annotation, does a standard or best practice exist?
I've recently come across the java @SafeVarargs annotation. Googling for what makes a variadic function in Java unsafe left me rather confused (heap poisoning? erased types?), so I'd like to know a few things:
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ASP.NET MVC: No parameterless constructor defined for this object
I was following Steven Sanderson's ' Pro ASP.NET MVC Framework ' book. On page 132, in accordance with the author's recommendation, I downloaded the ASP.NET MVC Futures assembly, and added it to my MVC project. [Note: This could be a red herring.]
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How to force link from iframe to be opened in the parent window
I need to open the link in the same parent page, instead of open it in a new page.
13 Answers
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What's the right OAuth 2.0 flow for a mobile app
I am trying to implement delegated authorization in a Web API for mobile apps using OAuth 2.0. According to specification, the implicit grant flow does not support refresh tokens, which means once an access token is granted for an specific period of time, the user must grant permissions to the app a...
How to check if running as root in a bash script
I'm writing a script that requires root level permissions, and I want to make it so that if the script is not run as root, it simply echoes "Please run as root." and exits.
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