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Algorithm to detect corners of paper sheet in photo

...of a rush, so the code needs some errr...decoding... I'll give a few tips from what I've seen you doing already, and then sort my code on my day off tomorrow. First tip, OpenCV and python are awesome, move to them as soon as possible. :D Instead of removing small objects and or noise, lower the c...
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PHP validation/regex for URL

...d be cleaned up but since it worked. I've more or less just copied it over from project to project. share | improve this answer | follow | ...
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“open/close” SqlConnection or keep open?

...osed when you call SqlConnection.Open. ASP.NET recycles active connections from the pool when the connection string matches a previously used connection string. The overhead involved in this is inconsequential, and additionally, trying to "do it yourself" means you have to assume all the management ...
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Programmer Puzzle: Encoding a chess board state throughout a game

...ng: e4 e5 Nf3 Nc6 … which translates to: White moves king’s pawn from e2 to e4 (it is the only piece that can get to e4 hence “e4”); Black moves the king’s pawn from e7 to e5; White moves the knight (N) to f3; Black moves the knight to c6. … The board looks like this: An impor...
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Find Oracle JDBC driver in Maven repository

...omputer repository with (note I pulled the groupId, artifactId and version from the POM): mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc14 \ -Dversion=10.2.0.3.0 -Dpackaging=jar -Dfile=ojdbc.jar -DgeneratePom=true The last parameter for generating a POM will save you from p...
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Verifying that a string contains only letters in C#

... Just to save people like me from one more search, Regex is in the System.Text.RegularExpressions Namespace – Eric Barr Mar 19 '14 at 13:51 ...
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Get domain name from given url

...e using InternetDomainName.topPrivateDomain() in Guava: InternetDomainName.from(new URL(url).getHost()).topPrivateDomain().toString() Given http://www.google.com/blah, that will give you google.com. Or, given http://www.google.co.mx, it will give you google.co.mx. As Sa Qada commented in another a...
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ImportError: DLL load failed: %1 is not a valid Win32 application. But the DLL's are there

...ndows Binaries for Python Extension Packages you can find any python libs from here share | improve this answer | follow | ...
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Increasing the maximum number of TCP/IP connections in Linux

...ort range defines the maximum number of outbound sockets a host can create from a particular I.P. address. The fin_timeout defines the minimum time these sockets will stay in TIME_WAIT state (unusable after being used once). Usual system defaults are: net.ipv4.ip_local_port_range = 32768 61000 n...
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Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4

....0+) function call. For instance, the following functions throw the error from the question: url(r'^foo/(?P<bar>[A-Za-z]+)/$', views.FooBar.as_view(), 'foo') path('foo/{slug:bar}/', views.FooBar, 'foo') But these actually work: url(r'^foo/(?P<bar>[A-Za-z]+)/$', views.FooBar.as_view(...