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Algorithm to detect corners of paper sheet in photo
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Hi Daniel, thanks for getting involved. I like you approach. its actually the route Im getting good results with at the moment. There was even and OpenCV example what detected the rectangles. Just had to do some filtering on the results. as you were saying the white on white ...
NSOperation vs Grand Central Dispatch
...n operations. Both very simple with NSOperation, very difficult with GCD.) Apple's done the hard work of leveraging GCD to create a very nice object-friendly API with NSOperation. Take advantage of their work unless you have a reason not to.
Caveat:
On the other hand, if you really just need to sen...
How to append something to an array?
How do I append an object (such as a string or number) to an array in JavaScript?
30 Answers
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Token Authentication for RESTful API: should the token be periodically changed?
...}
return HttpResponse(json.dumps(response_data), content_type="application/json")
return HttpResponse(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
obtain_expiring_auth_token = ObtainExpiringAuthToken.as_view()
yourmodule/urls.py:
from django.conf.urls import patter...
The current SynchronizationContext may not be used as a TaskScheduler
...and doesn't actually continue on the same thread.
– Sapph
Apr 9 '16 at 21:29
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show 5 more comments
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How to get the groups of a user in Active Directory? (c#, asp.net)
...or each loop iteration in the result
It contains bugs which can cause your application to stop working 'some day' when groups and users are evolving. Microsoft recognized the issue and is related with some SID's. The error you'll get is "An error occurred while enumerating the groups"
Therefore, I...
Get users by name property using Firebase
I'm trying to create an application where I can get/set data in specific users accounts and I was tempted by Firebase.
8 An...
Convert Time from one time zone to another in Rails
...built into Rails, but is not part of the Ruby stdlib. If you have a rails app, no problem. If you have a straight Ruby app you'll need to be sure to require active support.
– Gayle
Jan 8 '13 at 15:58
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Fastest way to serialize and deserialize .NET objects
...sing the available libraries. Most people should concentrate on what their app needs, not this minutae.
– Marc Gravell♦
Jun 1 at 12:35
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How to track untracked content?
...epository (no submodules). The third-party git subtree command is a nice wrapper around the subtree merge functionality.
git rm --cached vendor/plugins/open_flash_chart_2
git commit -m'converting to subtree; please stand by'
mv vendor/plugins/open_flash_chart_2 ../ofc2.local
git subtree add --prefi...