Cless LiberiFatali

Install pkg-config

sudo apt install pkg-config

This is VERY important, since we want this build of opencv-python to make use of the libraries we have already installed. Portability is no issue here. pkg-config generates .pc files that CMake will look into. Without this, CMake will not know where FFMPEG libraries are or if they are installed.

Compile opencv

1. get source

git clone --depth 1 --branch [version] https://github.com/opencv/opencv.git For example: 4.11.0 for version

Activity Recognition Datasets

An overview of recent action recognition datasets and their detection classes

Concepts & terminologies:

Action: Atomic low-level movement such as standing up, sitting down, walking, talking etc.
Activity/event: Higher level occurence then actions such as dining, playing, dancing
Trimmed video: A short video clip containing event/action/activity of interest
Untrimmed video: A video clip of arbitrary length potentially containing durations without activities of interest
Localization: locating an instance of event/action/activity within a video at a spatial or temporal scale
Spatial localization: Locating the region/area of an instance of action/activity within a video

Huawei Freebuds Pro - Linux (KDE Neon) configuration and AAC audio

The default configuration of KDE Neon does not work with the headphones. I have managed to connect them doing some changes, and adjusting some configurations. This resumes that, to keep it if I need to reconfigure them in the future.

This configuration has worked for me using the following setup:

KDE Neon 5.20, kernel 5.4.0
Freebuds Pro version 1.9.0.256

Setup redis-cli on AWS EC2

SSH into your EC2 instance. Run the following:

$ sudo yum install gcc This may return an "already installed" message. That's OK.

$ wget http://download.redis.io/redis-stable.tar.gz && tar xvzf redis-stable.tar.gz && cd redis-stable && make

See: http://docs.aws.amazon.com/AmazonElastiCache/latest/UserGuide/GettingStarted.ConnectToCacheNode.Redis.html

Embedding Diagrams in GitHub Markdown

This explains and demos how to use diagrams.net (draw.io) diagrams in your GitHub repo.

See repo for more details

Benefits of using diagrams.net in GitHub repositories

Diagrams are stored in your repository with your code and docs
Diagram access is controlled by GitHub repository access

This script enhances the functionality of nvidia-smi and provides the following information:

Username
full process Command
GPU ID
PID

This is useful on multi-user servers and can be used to quickly identify which user is using the GPU and running what kind of program.

How to install CUDA & cuDNN on Ubuntu 22.04

Install NVIDIA drivers

Update & upgrade

sudo apt update && sudo apt upgrade

	List out the partitions

	Use the fdisk command to list of all partitions

	$ sudo fdisk -l
	Here is what the ouput would look like

	Disk /dev/sda: 500.1 GB, 500107862016 bytes
	255 heads, 63 sectors/track, 60801 cylinders
	Units = cylinders of 16065 * 512 = 8225280 bytes

	#!/bin/bash
	wget http://cdn01.foxitsoftware.com/pub/foxit/reader/desktop/linux/2.x/2.4/en_us/FoxitReader.enu.setup.2.4.4.0911.x64.run.tar.gz
	gzip -d FoxitReader.enu.setup.2.4.4.0911.x64.run.tar.gz
	tar xvf FoxitReader.enu.setup.2.4.4.0911.x64.run.tar
	./FoxitReader.enu.setup.2.4.4.0911\(r057d814\).x64.run

	deb http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse
	deb-src http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse

	deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse
	deb-src http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse

	deb http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
	deb-src http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse

	deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse