Stefano Tommesani

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Programming/Video
The bgslibrary by Andrews Sobral includes over 30 background subtraction algorithms, a common C++ framework for comparing them, and an handy C++/MFC or Java app to see them running on video files or live feed from a webcam. I have run all the...
Wednesday, 18 September 2013 | Print | PDF | Read more
Programming/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 visualize this is imaging...
Tuesday, 21 May 2013 | Print | PDF | Read more
Programming/SIMD
70
Monday, 20 May 2013 | Print | PDF
 


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A software to stand out 27 January 2018, 14.35 Web
A software to stand out
Standing out of the pack starts by being visible, and being noticed by the right group of professionals. No matter how good your profile is, it is lost in a sea of similar profiles, so you need to show up and start attracting
Web page scraping, the easy way 07 January 2018, 00.46 Web
Web page scraping, the easy way
There are many ways to extract data elements from web pages, almost all of them prettier and cooler than the method proposed here, but as we are in an hurry, let's get that data quickly, ok? Suppose we have to extract the
Scraping dynamic page content 06 January 2018, 23.57 Web
Scraping dynamic page content
One of the most common roadblocks when scraping the content of web sites is getting the full contents of the page, including JS-generated data elements (probably, the ones you are looking for). So, when using CEFSharp to scrape
Unit-testing file I/O 26 November 2017, 12.09 Testing
Unit-testing file I/O
Two good news: file I/O is unit-testable, and it is surprisingly easy to do. Let's see how it works! A software no-one asked for First, we need a piece of software that deals with files and that has to be unit-tested. The
Fixing Git pull errors in SourceTree 10 April 2017, 01.44 Software
Fixing Git pull errors in SourceTree
If you encounter the following error when pulling a repository in SourceTree: VirtualAlloc pointer is null, Win32 error 487 it is due to to the Cygwin system failing to allocate a 5 MB large chunk of memory for its heap at