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Is there a way to detect if an image is blurry?
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Yes, it is. Compute the Fast Fourier Transform and analyse the result. The Fourier transform tells you which frequencies are present in the image. If there is a low amount of high frequencies, then the image is blurry.
Defining the terms 'low' and ...
REST API Token-based Authentication
... good old session id? Session id is short-lived and it is also attached to fast cache storage (if you implement it) to avoid hitting your DB on every request. True RESTful & stateless design should not have sessions, but if you are using a token as an ID and then still hitting the DB, then would...
How does Google Instant work?
...@zengr: You mean for the client (us) or for them? ... For me it works very fast in Chrome, and since I'm paying for my bandwidth, whether I use it or not, I'm fine with it. Google say that they plan to disable it automatically for slow internet connections.
– Daniel Vassallo
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What is the difference between SAX and DOM?
...s the XML file from top to bottom and backward navigation is not possible.
Faster at run time.
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Git workflow and rebase vs merge questions
...ur work, resolving any conflict then)
the final merge will certainly be a "fast forward" one, because it will have all the commit history of the master, plus only your changes to reapply.
I confirm that the correct workflow in that case (evolutions on common set of files) is rebase first, then mer...
Why doesn't Java allow overriding of static methods?
...ey do had the benefit of familiarity for C++ programmers and was also very fast, because there's no need to wait until runtime to figure out which method to call.
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Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
...Here (Slow frame rate cause of the screen cast. Actual performance is very fast)
Usage:
layout = new ThreeLayout(this, 3);
layout.setAnimationDuration(1000);
setContentView(layout);
layout.getLeftView(); //<---inflate FragmentA here
layout.getMiddleView(); //<---inflate FragmentB here
la...
Algorithm to compare two images
...orithm.
In a grossly over simplified example, one algorithm might execute faster when there are less changes to be made. We then know there is a higher probability that these two images share properties with each other.
This technique could work well for rotated, distorted, skewed, zoomed, all ty...
What does “Could not find or load main class” mean?
...nswer had the word "package" in it, which allowed me to find what I needed fast. And it worked. So +1 Razavi. StephenC, yours lacks the simple package example I needed as I am new to Java.
– kmort
Oct 29 '14 at 19:02
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List of Big-O for PHP functions
...P for a while now, I've noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes.
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