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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
... // try several threshold levels
const int threshold_level = 2;
for (int l = 0; l < threshold_level; l++)
{
// Use Canny instead of zero threshold level!
// Canny helps to catch squares with gradient shading
if (l == 0)
...
Could not insert new outlet connection [duplicate]
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255
I got the same problem as you today... I think this is a bug of Xcode, below is the way to fix...
Is it possible to select the last n items with nth-child?
Using a standard list, I'm trying to select the last 2 list items. I've various permutations of An+B but nothing seems to select the last 2:
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How do I replace the *first instance* of a string in .NET?
...DIT: As @itsmatt mentioned, there's also Regex.Replace(String, String, Int32), which can do the same, but is probably more expensive at runtime, since it's utilizing a full featured parser where my method does one find and three string concatenations.
EDIT2: If this is a common task, you might want...
How can I strip first X characters from string using sed?
...ux in a small industrial box. I have a variable containing the text pid: 1234 and I want to strip first X characters from the line, so only 1234 stays. I have more variables I need to "clean", so I need to cut away X first characters and ${string:5} doesn't work for some reason in my system.
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Limit text length to n lines using CSS
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729
There's a way to do it using unofficial line-clamp syntax, and starting with Firefox 68 it work...
Run single test from a JUnit class using command-line
... invoke it like this:
> java -cp path/to/testclasses:path/to/junit-4.8.2.jar SingleJUnitTestRunner
com.mycompany.product.MyTest#testB
After a quick look in the JUnit source I came to the same conclusion as you that JUnit does not support this natively. This has never been a problem for m...
Is it possible to install APK file if more than one emulators/devices are connected [duplicate]
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262
Yes, you can install an apk on a particular device.
In command, type:
adb devices
// list o...
How to fix Error: laravel.log could not be opened?
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