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How to convert a PIL Image into a numpy array?

... Open I as an array: >>> I = numpy.asarray(PIL.Image.open('test.jpg')) Do some stuff to I, then, convert it back to an image: >>> im = PIL.Image.fromarray(numpy.uint8(I)) Filter numpy images with FFT, Python If you want to do it explicitly for some reason, there are pi...
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Java Map equivalent in C#

...","world"); ... Console.Writeline(example["hello"]); An efficient way to test/get values is TryGetValue (thanx to Earwicker): if (otherExample.TryGetValue("key", out value)) { otherExample["key"] = value + 1; } With this method you can fast and exception-less get values (if present). Reso...
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How many threads can a Java VM support?

...hreads do anything useful. Update Okay, couldn't resist. Here's my little test program, with a couple embellishments: public class DieLikeADog { private static Object s = new Object(); private static int count = 0; public static void main(String[] argv){ for(;;){ new...
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configure Git to accept a particular self-signed server certificate for a particular https remote

...IdVQIKvHok2P/u9tvTUQA== -----END CERTIFICATE----- This shall work (but I tested it only with single certificate). Configure git to trust this certificate $ git config --global http.sslCAInfo /home/javl/git-certs/cert.pem You may also try to do that system wide, using --system instead of --glob...
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Questions every good .NET developer should be able to answer? [closed]

...hat people should roll their own hashtable. This is a basic question which tests whether a person has a minimal understanding of datastructures. Thats what these questions test for: bare minimum understanding. You learn about these hashtables and linked lists on the first day of Data Structures 101...
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.NET - How can you split a “caps” delimited string into an array?

... The only answer that passes my 2 outlier tests: "Take5" -> "Take 5", "PublisherID" -> "Publisher ID". I want to upvote this twice – PandaWood Mar 29 '17 at 1:08 ...
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How to check if a string contains only digits in Java [duplicate]

...Sequences Edit: due to some confusion in other answers, I am writing a test case and will explain some more things in detail. Firstly, if you are in doubt about the correctness of this solution (or others), please run this test case: String regex = "\\d+"; // positive test cases, should all b...
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jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class

...e to provided. This tells Maven use code servlet-api.jar for compiling and testing only, but NOT include it in the WAR file. The deployed container will “provide” the servlet-api.jar at runtime. <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-ap...
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iOS 7 sizeWithAttributes: replacement for sizeWithFont:constrainedToSize

...ngRect( with: CGSize(width: width, height: CGFloat.greatestFiniteMagnitude), options: NSStringDrawingOptions.usesLineFragmentOrigin, attributes: attributes as [NSAttributedString.Key : Any], context: nil) ...
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Using Regex to generate Strings rather than match them

...ng a Java utility which helps me to generate loads of data for performance testing. It would be really cool to be able to specify a regex for Strings so that my generator spits out things which match this. Is there something out there already baked which I can use to do this? Or is there a libr...