Stefano Tommesani

Comparing SSE2 and GPGPU C++ AMP 20 May 2013, 15.41 GPGPU

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

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Spidering Facebook public profiles with C++ and Boost 17 May 2013, 21.48 Web

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

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GPGPU performance on switchable graphics notebooks 10 May 2013, 22.44 GPGPU

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

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Unit testing with Visual C++ 2012 24 April 2013, 23.42 Testing

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

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Different types of parallel loops with Intel TBB, SSE2, SSSE3 and Visual C++ 2012 22 April 2013, 22.15 Multi-thread

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

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