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#Coding4Fun – #RaspberryPi LED Christmas Tree 🎄 sync with #MicrosoftTeams (1/N) Why? Why not !
Hi ! So I was preparing boxes with gadgets I have for our next house move, and I realized that I had a super cool Led based Christmas Tree, that can be used with a Raspberry Pi. The device can be programmed with Python, so I decided to go in my notes and I found — read more
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#Windows10 – Deckboard deck, a super useful tool to run macros, OBS 🎦 integration and more. Bonus: build your own deck!
Hi ! I’m keeping myself away from buying new stuff during these days. Stream Deck (see references) is one of those devices that have been in my shopping list for a long time, as far as I understand is super useful and also adds tons of options to our work-from-home new life. Right now, the — read more
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#OpenCV – Open a video file 🎥 and save each frame as a PNG 🖼 file to a folder 📂#Net5
Hi ! A couple of days ago I wrote this post, and made the sample with Python. So today, same scenario, however with C# 9 and Net5. This is a non-usual scenario, however I’m on a point where I need to extract all the frames from a video file. The reason: some of these frames — read more
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#OpenCV – Open a video file 🎥 and save each frame as a PNG 🖼 file to a folder 📂#Python
Hi ! This is a non-usual scenario, however I’m on a point where I need to extract all the frames from a video file. The reason: some of these frames will be used to train a Machine Learning model. There are tools that can do this, however it’s a nice moment to do some OpenCV — read more
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#dotnet – Display a video file🎥 in Winform using #OpenCV and #net5
Hi ! Super short post today, however is the base of the next series of posts around OpenCV and .Net 5. I already wrote on how to work with a webcam, and now it’s time to share a simple piece of code to show How to open and process a video frame by frame I’ve — read more
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#RaspberryPi – New OS allows #MicrosoftTeams in the device ! And a simple but amazing config for the onboard LED
Hi ! We have a new Raspberry Pi OS release – December 2020 (see references) and it adds tons of new features. The latest version upgrades Chromium, to a version that allow us to to: join teams calls ! I’m starting to think on have a custom Teams Kiosk just to join meetings, without using — read more
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#PowerPlatform – HowTo: Test Power Automate Flow HTTP using Postman
Hi ! It’s been a while since I wrote about Power Flow Automate, and this is a good memory reminder for myself, I always spend +30 minutes figuring out how to Test a Power Automate Flow, triggered when a HTTP request is received using Postman. So, simple scenario with a Flow triggered when a HTTP — read more
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#Event – Global AI Bootcamp Toronto on Dec 12 🤖🤖🤖 @GlobAICommunity
Hi ! This started to be my annual tradition: Global AI Bootcamp is the last event of the year! And this year, we had a set of amazing session planned with the following topics: Introduction to AI and Cognitive Services for Developers and Information Workers Understanding Autonomous systems, Machine Teaching and Bonsai Platform Knowledge Mining — read more
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#Event – Resources used during the session “Hack a drone, hack the camera and use AI” at the Global AI Tour, Lahore Pakistan, 2020
Hi ! I had a great time early in the day with my Microsoft Student Partners from Lahore Pakistan, for the Global AI Tour. As usual, time for slides and code: Slides Code https://github.com/elbruno/events/tree/main/2020%2011%2030%20Global%20AI%20Tour%20Pakistan Resources DJI Tello Drone, https://www.amazon.com/Tello-CP-PT-00000252-01-Quadcopter-Drone/dp/B07BDHJJTH Ryze Tello SDK, https://www.ryzerobotics.com/tello Viola Jones, Object Detection Framework, https://en.wikipedia.org/wiki/Viola%E2%80%93Jones_object_detection_framework Cognitive Services Custom Vision, https://customvision.ai — read more
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#dotnet – Packaging my WinForm #OpenCV and #net5 app in a one-self contained file (Thanks @shanselman!)
Hi ! A couple of days ago, Scott Hanselman posted about a super cool feature (see references): … you can make a single EXE that will run on any Windows Machine in two commands How to make a WinForms app with .NET 5 entirely from the command line and publish as one self-contained file and — read more
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#dotnet – Pose detection from the 🎦 camera feed using #OpenCV and #net5. Home-made #kinect!
Hi ! LearnOpenCV is an amazing resource to learn about OpenCV. And, it has lot of scenarios of real life problem solved with OpenCV. Most of the samples are in C++ or Python, so I decided to pick one related to pose estimation, and using .Net 5 in a Winforms App, build something like this: — read more
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#dotnet – GoogleNet detection from the 🎦 camera feed using #OpenCV and #net5. Bonus: C++ to C# time!
Hi ! So I was browsing in the OpenCV documentation and I find a nice sample that uses opencv_dnn module for image classification by using GoogLeNet trained network from Caffe model zoo. So I give it a try, and get a decent .Net 5 Winforms App running at ~30 FPS. The model was trained with — read more
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#dotnet – Age and Gender estimation from the 🎦 camera feed using #OpenCV and #net5
Hi ! Face detected, so next step is to use some prebuild models to perform additional actions: like estimate the Age of a face, and also the Gender. In order to do this, I downloaded a couple of models from here. Disclaimer: these models are just sample models, do not use them in production. These — read more
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#dotnet – Detecting Faces, DNN vs Haar Cascades from the 🎦 camera feed using #OpenCV and #net5
Hi ! In one session around computer vision, someone ask the question about which approach is better Haar Cascades or DNN? And the answer can be show using the video below As you can see Haar Cascades works great for faces looking directly to the camera, with good lights and in optimal conditions. However, once — read more
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#Event – Resources used during the session “Getting started with Machine Learning.Net and AutoML” at the MVP Days Israel 2020
Hi ! I had a great time early in the day (04:00AM!) with the MVP Days Israel team talking about how to start with Machine Learning .Net. As usual, time for slides and code: Slides Code https://github.com/elbruno/events/tree/main/20201119%20MVP%20Day%20Israel%20MLNet Resources DotNet Machine Learning.Net GitHub DotNet Machine Learning GitHub DotNet Machine Learning Samples Recording Coming soon ! — read more
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#dotnet – Detecting Faces using DNN from the 🎦 camera feed in a WinForm using #OpenCV and #net5
Hi ! Let’s do some face detection using a DNN model (See references). As yesterday, I won’t write about details, there are almost 20 years of online documentation available. And, IMHO opinion code is much more useful that long writing, so let’s go there. 1st load the Caffe model and the config file. And, once — read more
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#dotnet – Detecting Faces using Cascades from the 🎦 camera feed in a WinForm using #OpenCV and #net5
Hi ! Let’s do some face detection using one of the most popular methods: Haar Casacades (See references). I won’t write about Cascades, there are almost 20 years of online documentation available. And, IMHO opinion code is much more useful that long writing, so let’s go there. 1st load the cascade definition file. And, once — read more
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#dotnet – Display the 🎦 camera feed in a WinForm using #OpenCV and #net5
Hi ! Back on the Windows Forms days, cameras were tricky. We didn’t have a lot of libraries to work, and they usually require some extra work to handle unexpected errors. With Net 5 and OpenCVSharp, we can create a simple WebCam viewer like this one. Let’s start with a [Take a Photo] Windows Form — read more
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#dotnet – detecting corners on the 🎦 camera feed with FAST algorithm, #OpenCV and #net5
Hi ! Today is a quick one: FAST corner detection algorithm. FAST (Features from Accelerated Segment Test) algorithm was proposed by Edward Rosten and Tom Drummond in their paper “Machine learning for high-speed corner detection” in 2006 (Later revised it in 2010). A basic summary of the algorithm is presented below. Refer original paper for — read more
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#dotnet – detecting edges on the 🎦 camera feed with Canny algorithm, #OpenCV and #net5
Hi ! The Canny edge detection is one the most popular algorithms, and it’s also +30 years old. The Canny edge detector is an edge detection operator that uses a multi-stage algorithm to detect a wide range of edges in images. It was developed by John F. Canny in 1986. OpenCV includes the Canny algorithm — read more
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El Bruno 