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Extracting text OpenCV
...lt;std::vector<cv::Point> > contours_poly( contours.size() );
for( int i = 0; i < contours.size(); i++ )
if (contours[i].size()>100)
{
cv::approxPolyDP( cv::Mat(contours[i]), contours_poly[i], 3, true );
cv::Rect appRect( boundingRect( cv::...
How to flush output of print function?
How do I force Python's print function to output to the screen?
13 Answers
13
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How to use ng-repeat without an html element
...While this might technically work, it's very disappointing that the answer for this common use case is that you have to inject arbitrary (otherwise unnecessary) markup. I have the same problem (repeated groups of rows -- one header TR with one or more child TRs, repeated as a group). Trivial with ot...
Get content uri from file path in android
I know the absolute path of an image (say for eg, /sdcard/cats.jpg). Is there any way to get the content uri for this file ?
...
What's wrong with using $_REQUEST[]?
...OST in a combined way. In fact that's what you almost always want to do:
for a plain idempotent request usually submitted via GET, there's the possibility the amount of data you want won't fit in a URL so it has be mutated to a POST request instead as a practical matter.
for a request that has a r...
Update MongoDB field using value of another field
...ion 4.2 also introduced the $set pipeline stage operator which is an alias for $addFields. I will use $set here as it maps with what we are trying to achieve.
db.collection.<update method>(
{},
[
{"$set": {"name": { "$concat": ["$firstName", " ", "$lastName"]}}}
]
)
Mon...
When do I use the PHP constant “PHP_EOL”?
...s, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Windows endline when executed on a unix-like system.
...
Determine project root from a running node.js application
...unning node.js process? Something like the equivalent of Rails.root , but for Node.js. I'm looking for something that is as predictable and reliable as possible.
...
Mongoose populate after save
...r field on a newly saved object ... the only way I can find is to re-query for the objects I already have which I would hate to do.
...
How disable Copy, Cut, Select, Select All in UITextView
... operations is to create a subclass of UITextView that overrides the canPerformAction:withSender: method to return NO for actions that you don't want to allow:
- (BOOL)canPerformAction:(SEL)action withSender:(id)sender
{
if (action == @selector(paste:))
return NO;
return [super canP...