Python application for real time object detection and segmentation.

Overview

In previous article I walked through with you on using YOLOv5 for real time object detection. In this article let’s develop a Python application for real time object detection using Detectron2, which is a Facebook AI Research’s next generation software system that implements state-of-the-art object detection algorithms.

The Application

The application uses opencv-python and Detectron2 pre-trained model to capture camera images and try to detect the objects.

• Git clone the repository.
• Run python setup.py install
• Install Detectron2 based on Python version and GPU availability
• Type d2 to start the application
• Type q to…

Managing multiple projects from Vim/Neovim.

Overview

Normally I work on multiple projects on a daily basis. Most projects are under a common folder and I will be switching among projects from time to time. For Emacs users, projectile makes it very easy for project management and navigation. Using projectile, I can switch projects and fuzzy find files easily. For Vim/Neovim, we also have few options available.

I will be using the dotfiles I developed in my previous article for the walk through.

Tab and Session

The default Vim way is to use tabs for multiple projects. You can create 1 tab for each project.

…

Debugging application written in Python, Golang, Rust and Javascript/Typescript.

Overview

In previous article on Neovim LSP and DAP, I setup DAP using nvim-dap. In this article, let’s set up debugger for Python, Golang, Rust and Javascript/Typescript using vimspector.

Setup

Plugin Installation

I am going to leverage the dotfiles I configured in my previous article.

Inlua/plugins.lua, add the following line to install vimspector. You can use whatever plugin manager that you prefer.

-- Debugging
use { 'puremourning/vimspector' }

Run :luafile % and :PackerInstall to install the plugin.

Adapter Installation

Create a file called vimspector.vim under the plugin folder with the following content.

let g:vimspector_enable_mappings = 'HUMAN'nmap…

Application to transform camera photo into cartoon image.

Overview

In previous articles I developed a web based object detection system using YOLO and a text recognition application using Tesseract. In this article let’s build a fun cartoon camera which transforms camera photo into cartoon image.

The Application

The is a web based application built using React and FastAPI. The frontend application uses the web camera to capture photo and send to the backend through web socket. The backend application transforms it into a cartoon image, and sends the cartoon image back to the web application.

There are different styles that you can apply…

LSP and DAP for Python, Golang, Rust and Typescript/Javascript.

Overview

In previous article I developed a configuration for Emacs beginner. In this article let’s continue to set up LSP (Language Server Protocol) and DAP (Debug Adapter Protocol). Particularly the languages that I will focus on are Python, Golang, Rust and Typescript.

Language Servers Installation

I am going to use the same language servers in my earlier article on setting up Neovim LSP using Lua.

Python

For Python, let’s install pyright.

$ npm install -g pyright

Golang

For Golang, let’s install gopls.

$ GO111MODULE=on go get golang.org/x/tools/gopls@latest

Rust

For Rust, let’s use rust_analyzer. The easiest way to install…

LSP and DAP for Python, Golang, Rust, and Typescript/Javascript.

Overview

In my previous article I walked through with you on how to convert existing .vimrc to a Lua based configuration and set up LSP for Lua.

In this article let’s add LSP and DAP support. Particularly I will focus on Python, Typescript, Golang and Rust.

Installation of Language Servers

Let’s get started by installing the language server.

If you are using coc.nvim, normally the language server is installed automatically for you. For Neovim LSP, there are available plugins to automate this process. Here I will go through the manual installation steps.

Python

For Python, let’s install…

Overview

In previous article I walked through with you on how to build a real time object detection system using YOLOv5. In this article let’s build a web based text recognition system using Tesseract OCR, which is an open source optical character recognition engine for various operating systems.

Tesseract

I am going to use Tesseract version 4.1. The default installed language is English but you can install for other supported languages as well. The installation differs for each operating system and you can refer to the documentation.

Overview

In my previous article I documented a very brief tutorial of Emacs Lisp. In this article let’s continue to create an Emacs configuration for beginner.

Introduction

Emacs is more than just a text/code editor (LSP, DAP). It is an extensible computing environment which can be used as email client (mu4e), window manager (exwm), editing remote files (tramp) and much more. With org-mode, you can use Emacs for keeping notes, maintaining to-do lists, planning projects, authoring documents, computational notebooks, literate programming (Babel) and more.

Unlike VSCode which is easy to get started, Emacs requires customization using elisp in order to be useful…