Agora eu sei o que voc
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Ora so cosa hai fatto luned
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The temporal median algorithm compares the same pixel in consecutive images in a sequence, and returns the median value of the pixel, i.e. the pixel value that has the same number of lower and higher values (an easy way to visualize this is imaging all the pixel values in an…
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Back in 2010, security researcher Ron Bowes wrote a Ruby script that downloads information from Facebook’s user directory, a searchable index of public profile pages. The directory did not expose a user’s entire profile and only exposed information that the user has allowed Facebook to make public. Bowes got the…
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Many notebooks on the market feature switchable graphics, that is, a notebook with an Intel CPU with built-in HD Graphics technology, as well as an additional AMD HD Radeon GPU or nVidia GeForce GPU. During normal usage, just the Intel HD Graphics is enabled, as it consumes less power, and…
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The article related to multi-threading and SSE2 optimizations (you can find it here) uses a quick-and-dirty way to check if the optimized code is correct, i.e. it runs an iteration on a given input image with a reference serial code, stores the resulting output image, runs an iteration of the…
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This is not the first article on this site that discusses how to use the Intel Thread Building Blocks library to spread the computation of an image-processing kernel over multiple threads: the article named “Multi thread loops with Intel TBB” showed how to do it with Intel TBB 2.x. However,…
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In a previous article named “Easy multi-thread programming Delphi“, the AsyncCalls library was used to process multiple images at the same time. However, the processing of every single image was still strictly serial, even if image processing kernels are quite easy to accelerate spreading the load over multiple threads. In…
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This article is a description of the integration of Facebook authentication inside Friend Watchdog. It is not meant to be an introduction or a description of Friend Watchdog’s features. Please click here for more information about Friend Watchdog. Why authenticating on Facebook with Friend Watchdog After authenticating on Facebook, the…
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Friend Watchdog is now offline. There are several technical reasons for this choice, the first one being Microsoft dropping support for the chat API in Skype, the second one being Facebook changing the behaviour of their chat servers. But the most important reason is that a lot of people finally…