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Is there a way to detect if an image is blurry?

...3, 1) << -1, 2, -1); cv::Mat G = cv::getGaussianKernel(3, -1, CV_64F); cv::Mat Lx; cv::sepFilter2D(src, Lx, CV_64F, M, G); cv::Mat Ly; cv::sepFilter2D(src, Ly, CV_64F, G, M); cv::Mat FM = cv::abs(Lx) + cv::abs(Ly); double focusMeasure = cv::mean(FM).val[0]; ...
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Maximum concurrent Socket.IO connections

... i found very handy to script a simulator... – Angry 84 Nov 27 '15 at 7:31  |  show 1 more comment ...
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What does “The APR based Apache Tomcat Native library was not found” mean?

...w Farwell 56.7k1616 gold badges117117 silver badges164164 bronze badges add a comment  |  ...
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How to loop through file names returned by find?

... David W.David W. 96.5k3333 gold badges199199 silver badges310310 bronze badges ...
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Why use strict and warnings?

... 84 For starters, use strict; (and to a lesser extent, use warnings;) helps find typos in variable ...
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Can I have multiple :before pseudo-elements for the same element?

... 96 In CSS2.1, an element can only have at most one of any kind of pseudo-element at any time. (Thi...
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Bytes of a string in Java

... 64 If you're running with 64-bit references: sizeof(string) = 8 + // object header used by the V...
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Why are function pointers and data pointers incompatible in C/C++?

... Bo PerssonBo Persson 84k1919 gold badges134134 silver badges196196 bronze badges ...
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Sleep until a specific time/date

... 96 As mentioned by Outlaw Programmer, I think the solution is just to sleep for the correct number...
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What is size_t in C?

... one implementation defines it as such doesn't mean all do. Case in point: 64-bit Windows. unsigned long is 32-bit, size_t is 64-bit. – Tim Čas Dec 28 '14 at 21:40 2 ...