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cv2.imshow command doesn't work properly in opencv-python
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I found the answer that worked for me here:
http://txt.arboreus.com/2012/07/11/highgui-opencv-window-from-ipython.html
If you run an interactive ipython session, and want to use highgui
windows, do cv2.startWindowThread() first.
In detail: HighGUI is a simpl...
Build Eclipse Java Project from Command Line
...everal years ago eclipse replaced startup.jar with the "equinox launcher"
https://wiki.eclipse.org/Equinox_Launcher
On Eclipse Mars (MacOX):
java -jar /Applications/Eclipse.app/Contents/Eclipse/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -noSplash -data "workspace" -applicatio...
MySQL vs MongoDB 1000 reads
...For example, consider a design that persisted a lot of information about a complicated entity in a normalised fashion. This could easily use dozens of tables in MySQL (or any relational db) to store the data in normal form, with many indexes needed to ensure relational integrity between tables.
Now...
Macro vs Function in C
...ncrements x twice
Putting parentheses around arguments helps but doesn't completely eliminate these problems.
When macros contain multiple statements, you can get in trouble with control-flow constructs:
#define swap(x, y) t = x; x = y; y = t;
if (x < y) swap(x, y); -->
if (x < y) t =...
Can I use Twitter Bootstrap and jQuery UI at the same time?
...rom the README:
Twitter's Bootstrap was one of my favorite projects to come out of
2011, but having used it regularly it left me wanting two things:
The ability to work side-by-side with jQuery UI (something which
caused a number of widgets to break visually) The ability to theme
jQue...
What is a good pattern for using a Global Mutex in C#?
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community wiki
18 revs, 14 users 31%Sam Saffron
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How to disable/enable the sleep mode programmatically in iOS?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to capture Curl output to a file?
...me to use the last segment of the URL path as the filename. Example:
curl http://example.com/folder/big-file.iso -O
will save the results to a new file named big-file.iso in the current folder. In this way it works similar to wget but allows you to specify other curl options that are not availabl...
How to validate an email address using a regular expression?
... use.
One RFC 5322 compliant regex can be found at the top of the page at http://emailregex.com/ but uses the IP address pattern that is floating around the internet with a bug that allows 00 for any of the unsigned byte decimal values in a dot-delimited address, which is illegal. The rest of it a...
How to import a module given its name as string?
I'm writing a Python application that takes as a command as an argument, for example:
11 Answers
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