I can’t tear myself away from the lectures by 3Blue1Brown. They have an excellent introduction to neural networks (which is what I watched) and a lot of other stuff I haven’t checked out yet, but you can tell it’s made beautifully and skillfully. They animate their lectures very coolly and can explain complex things simply.
Month: June 2018
June 22 2018, 21:44
Today after work I played around with OpenCV. I wrote a simple program for identifying chessboard cells. It finds and outlines one of the cells. It knows about the others as well, but for now, it outlines just one.
It doesn’t correct perspective yet, but it manages cells covered by pieces.


June 21 2018, 20:24
In my free time after work, I’m gradually delving into OpenCV. A really cool tool, wonder why I didn’t notice it earlier. It’s a library for working with video and images, and it includes a toolkit which allows you to extract various useful insights from webcams or videos. For instance, detecting moving objects, recognizing text, gestures, faces, etc.


June 19 2018, 22:32
The blog has moved to a new platform, changed its design, and has generally gotten younger) Welcome!
Over 130 articles already. Entering the third year
June 19 2018, 20:56
Walking home from work. Studying fireflies. They have no mouths and they don’t eat
June 19 2018, 11:21
Interestingly, so far not a single voice assistant or just a voice recognizer can properly process speech containing words from different languages. They also all have trouble recognizing words that are not in the English dictionary but are present in some limited list (like a phone directory). I still haven’t been able to teach Siri or Google to recognize Russian names spelled in Latin script through transliteration. It seems like a basic function of the phone, yet no, it doesn’t work.
June 19 2018, 00:07
Can anyone explain this? When launching the Facebook/iOS app, it sounds as though an audio track to a video in the feed starts playing, but there are no videos in the feed, plus I disabled autoplay a long time ago. The sound does not always turn on, but it did on the third and fourth tries.
Is this a bug or a feature?
June 18 2018, 17:51
Please provide the text you would like translated.

June 17 2018, 20:31
A fawn was encountered
June 16 2018, 14:55
More and more shops around us have completely switched to paper bags. Mostly, of course, not the cheapest ones. But in the few where there is still “plastic” at the checkout, that is, polyethylene (HDPE) bags, they very often ask “plastic bag?”. If you say “no”, they give you a paper one. Many customers come with their own bags. Almost all of them are motivated by environmental concerns rather than anything else. Polyethylene bags in our supermarket, for instance, are recycled separately. In some places, like Aldo, LDPE bags are only available for a fee, and in Costco (which is similar to Metro in Russia), there are no bags at all at the checkout.
