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Checking images for similarity with OpenCV
...pping.
There are a number of OpenCV tutorials/samples on this, and a nice video here. A whole OpenCV module (features2d) is dedicated to it.
Downsides: It may be slow. It is not perfect.
Over on the OpenCV Q&A site I am talking about the difference between feature descriptors, which are great...
How to break out of multiple loops?
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Got this from a Raymond Hettinger video, youtu.be/OSGv2VnC0go?t=971, read "else" statements attached to for loops as "no_break", then it becomes easier to understand.
– Ambareesh
Oct 29 '19 at 4:45
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Shall we always use [unowned self] inside closure in Swift
...wns something that owns the closure.
Specifically in the example from the video
In the example on the slide, TempNotifier owns the closure through the onChange member variable. If they did not declare self as unowned, the closure would also own self creating a strong reference cycle.
Difference b...
Is there a way to detect if a browser window is not currently active?
...lse positive too. Think about the same case as above, or a user watching a video.
In order to improve the imperfect behaviors described above, I use a combination of the 3 methods: W3C Visibility API, then focus/blur and user activity methods in order to reduce the false positive rate. This allows...
node.js child process - difference between spawn & fork
...to do continuous data buffer in binary/encoding format , Eg - Transfer 1gb video file,image,log files in ONE TIME
fork will be useful when you want to do messaging
Eg - JSON or XML data messaging
Conslusion
spawn should be used for streaming big data/files/images FROM spawn process TO parent pr...
Handler vs AsyncTask vs Thread [closed]
...s Schmidt lecture android concurrency and synchronisation
This is the video of the first lecture on YouTube
All this is part of the CS 282 (2013): Systems Programming for Android from the Vanderbilt University. Here's the YouTube Playlist
Douglas Schmidt seems to be an excellent lectu...
Understanding the transclude option of directive definition?
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@UladzimirHavenchyk thanks, they moved the video to other place. I fixed the link accordingly.
– odiseo
Aug 12 '15 at 20:44
4
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What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?
...host ("count=" + $count)
# or
write-host "count=$count"
BTW - Watch this video of Jeffrey Snover explaining how the pipeline works. Back when I started learning PowerShell I found this to be the most useful explanation of how the pipeline works.
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Capture Image from Camera and Display in Activity
...rent things like pick contacts, request permissions, take pictures or take videos. You are probably interested in the ActivityResultContracts.TakePicture shown above.
Note that androidx.fragment 1.3.0-alpha04 deprecates the startActivityForResult() + onActivityResult() and requestPermissions() + on...
Difference between / and /* in servlet mapping url pattern
... servlet is also capable of dealing with HTTP cache requests, media (audio/video) streaming and file download resumes. Usually, you don't want to override the default servlet as you would otherwise have to take care of all its tasks, which is not exactly trivial (JSF utility library OmniFaces has an...