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How to find out what type of a Mat object is with Mat::type() in OpenCV
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Here is a handy function you can use to help with identifying your opencv matrices at runtime. I find it useful for debugging, at least.
string type2str(int type) {
string r;
uchar depth = type & CV_MAT_DEPTH_MASK;
uchar cha...
How do you create a hidden div that doesn't create a line break or horizontal space?
...: inline-block or equivalent without the now-displayed div taking up space and moving my other DOM elements around?
– bpromas
Sep 25 '15 at 18:23
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Get the client's IP address in socket.io
...t the IP address of an incoming connection? I know you can get it from a standard HTTP connection, but socket.io is a bit of a different beast.
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CSS margin terror; Margin adds space outside parent element [duplicate]
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Add overflow:auto to your #page div.
jsFiddle example
And check out collapsing margins while you're at it.
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How do I enable language extensions from within GHCi?
...HCi you'll actually get tab completion for available extensions, which is handy when you can't remember where they decided to use abbreviations ("MultiParam") or acronyms ("GADT") rather than spelling things out in full ("MonomorphismRestriction")...
– C. A. McCann
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hadoop No FileSystem for scheme: file
...ems).
When we use maven-assembly-plugin, it merges all our JARs into one, and all META-INFO/services/org.apache.hadoop.fs.FileSystem overwrite each-other. Only one of these files remains (the last one that was added). In this case, the FileSystem list from hadoop-commons overwrites the list from ha...
SQL Server equivalent to Oracle's CREATE OR REPLACE VIEW
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Alter a view is way better than drop and recreate it. What if you have a lot of existing users security setup for a view, then you would have to recreate all those. This is my approach to this issue.
– jonas
Dec 4 '13 at 11...
Replace only some groups with Regex
...er if will use them or not :). In my opinion, that solution is much better and cleaner than using lookahead and lookbehinds.
– Oscar Mederos
May 15 '11 at 4:04
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jQuery - get a list of values of an attribute from elements of a class
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@MandeepJain: How does one mark an answer as 'correct'? This one may not have been marked as 'accepted', but over 100 people have voted it 'useful', and that's good enough for me!
– Michael Scheper
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Run class in Jar file
If you have a jar file called myJar.jar located in /myfolder and you want to use the class called myClass from it, how do you go about doing it from the command line?
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