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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
... // contour orientation
if (approx.size() == 4 &&
fabs(contourArea(Mat(approx))) > 1000 &&
isContourConvex(Mat(approx)))
{
double maxCosine = 0;
...
What is size_t in C?
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471
From Wikipedia:
According to the 1999 ISO C standard
(C99), size_t is an unsigned intege...
Prevent a webpage from navigating away using JavaScript
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164
Using onunload allows you to display messages, but will not interrupt the navigation (because it...
Sorting a vector of custom objects
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374
A simple example using std::sort
struct MyStruct
{
int key;
std::string stringValue;
...
Can Eclipse refresh resources automatically?
Eclipse (3.4.2 with PyDev) deals with out-of-sync resources (files that have been edited outside of the IDE) differently from other IDEs that I've used, where only resources with editors open are considered out-of-sync. In Eclipse, any resource can go out of sync.
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How do I break a string across more than one line of code in JavaScript?
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edited Sep 24 '13 at 14:54
answered Feb 3 '09 at 18:18
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Reordering arrays
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224
The syntax of Array.splice is:
yourArray.splice(index, howmany, element1, /*.....,*/ elementX);...
Can I use the range operator with if statement in Swift?
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438
You can use the "pattern-match" operator ~=:
if 200 ... 299 ~= statusCode {
print("succes...
PHP “pretty print” json_encode [duplicate]
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4 Answers
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