ImageBaker - Making Image Labelling Fun
ImageBaker - Making Image Labelling Fun
Posts by Year
2025
2022
Advent of Code 2022 Python Solutions: Days 1–4
A beginner-friendly walkthrough of my Advent of Code 2022 Python solutions for Days 1 to 4, including data preparation, input parsing, and clean Python code.
WordCloud in Python: Text Analysis and Twitter Data Visualization
A beginner-friendly guide to creating WordCloud visualizations in Python from Twitter data, with text cleaning, tweet analysis, and user bio analysis.
World Cup Tweet Sentiment Analysis in Python with Tweepy and TextBlob
Learn how to collect World Cup tweets with Tweepy, clean tweet text, classify sentiment with TextBlob, and visualize sentiment patterns in Python.
Simple Cryptography Algorithms in Python: Reverse Cipher, Caesar Cipher, and ROT13
A beginner-friendly Python tutorial on simple cryptography algorithms such as reverse cipher, Caesar cipher, and ROT13, including encryption, decryption, and...
Finding Remote Jobs: How and Where
Finding remote jobs can be challenging: there are many opportunities, but finding the right fit for your skills and profile takes effort. This post lists pop...
Making Money with Programming: Beginner Roadmap for Freelancing, Remote Work, and Portfolio Building
Learn practical ways to make money with programming, from building skills and personal projects to creating a portfolio, finding freelancing work, and using ...
Auto-encoders from Scratch in Python
Auto-encoders from scratch build on the same neural network fundamentals I covered earlier. If you haven’t already, see these prerequisite posts: Feed For...
Finding DateTime in Text Using Python
Why extract datetime values from text? In data processing and analysis you often need to identify timestamps embedded in emails, logs, or user messages. Text...
Stock Backtesting in Python: Beginner Guide with Backtesting.py, yfinance, SMA, EMA, and PPO
Learn the basics of stock backtesting in Python with yfinance, pandas, Backtesting.py, SMA crossover, EMA crossover, stop loss, take profit, and PPO examples.
Basics of Multithreading in Python: Threading, ThreadPoolExecutor, Locks, Queues, and Joblib
Learn the basics of multithreading in Python, when to use threads, how the threading module works, how to use locks and queues, and how Joblib can simplify p...
Working with Datetime in Python: datetime, timedelta, Timezones, zoneinfo, pytz, Pendulum, and pandas
Learn how to work with dates and times in Python using datetime, timedelta, strptime, strftime, timestamps, timezones, zoneinfo, pytz, pendulum, and pandas.
OpenCV Image Processing in Python: Beginner Guide with Examples
Learn the basics of OpenCV image processing in Python with practical examples for reading images, color conversion, masking, filtering, edge detection, Hough...
CNN with Keras: Beginner Guide to Convolutional Neural Networks for Image Classification
Learn the basics of Convolutional Neural Networks with Keras, including Conv2D, MaxPooling2D, Dropout, Flatten, Dense layers, image preprocessing, training, ...
Python Generators: Beginner Guide to yield, Iterators, Generator Expressions, and Memory-Efficient Code
Learn how Python generators work using the yield keyword, how they differ from normal functions and lists, and why they are useful for memory-efficient progr...
MySQL Prepared Statements: Beginner Guide with Dynamic Queries and Stored Procedures
Learn how MySQL prepared statements work, why they are useful, how to use dynamic query values safely, and how to combine prepared statements with stored pro...
Deploy a Streamlit Image Manipulation Tool on Heroku from GitHub
Learn how to deploy a Streamlit image manipulation web app on Heroku from a GitHub repository using requirements.txt, setup.sh, and Procfile.
Build an Image Merger Web Tool in Python with Streamlit, Pillow, OpenCV, and NumPy
Learn how to build an image merger web app in Python with Streamlit. Upload multiple images, merge them horizontally or vertically, add margins, preview the ...
Build an Image Size Reducer Web App in Python with Streamlit, Pillow, OpenCV, and NumPy
Learn how to build an image size reducer web app in Python with Streamlit. Upload an image, view its dimensions and file size, resize it with custom height a...
Making Fractal Shapes with Python: Cantor Set, Koch Curve, and Sierpinski Triangle
Learn how to create fractal shapes in Python using NumPy and Matplotlib. This tutorial covers the Middle Third Cantor Set, Von Koch Curve, and Sierpinski Tri...
Build a Weather SMS Bot in Python with AccuWeather, OpenWeather, Twilio, and Cron
Learn how to build a Python weather SMS bot that fetches forecast data from AccuWeather and OpenWeather, formats it into a short SMS, and sends it with Twili...
Build an Ethical Public Developer Profile Finder in Python with GitHub API, BeautifulSoup, and pandas
Learn how to build a public developer profile finder in Python using GitHub Search API, requests, pandas, and ethical data collection practices.
Deploy a Streamlit App on a Custom Domain with Apache2, Ubuntu, systemd, and HTTPS
Learn how to host a Streamlit app on your own domain using Apache2 as a reverse proxy, Ubuntu VPS, systemd, DNS records, firewall rules, and HTTPS.
Polygon.io Stock Market Data in Python: REST Aggregates, WebSockets, pandas, and Realtime Streams
Learn how to use Polygon.io stock market data in Python with REST APIs, aggregate OHLC bars, pandas DataFrames, and WebSocket realtime streams.
Send Emails with Python smtplib: Plain Text, HTML, Attachments, Gmail SMTP, and Environment Variables
Learn how to send emails with Python using smtplib and EmailMessage. This tutorial covers plain text email, HTML email, attachments, Gmail SMTP, environment ...
Getting Started with Apache Superset: Build a COVID-19 Data Dashboard with Docker, WSL, MySQL, and CSV Data
Learn how to get started with Apache Superset and build a COVID-19 dashboard using CSV data, MySQL, time-series charts, bar charts, map charts, and dashboard...
Build an Interactive Data Science Web App with Streamlit, Plotly, pandas, and scikit-learn
Learn how to turn a notebook-based data science project into an interactive Streamlit web app with Plotly charts, EDA tools, clustering, regression, classifi...
Beyond EDA: Taking Exploratory Data Analysis into Machine Learning Modelling with Python
Learn how to use insights from EDA to build machine learning models in Python. This tutorial covers K-Means, K-Medoids, linear regression, voting regression,...
Tweet Scraping with Tweepy: Search X/Twitter Posts Using API v2, pandas, and CSV Export
Learn how to collect public X/Twitter posts with Tweepy using the modern X API v2 Client, recent search, pagination, safe API-key handling, pandas DataFrames...
A General Way to Perform Exploratory Data Analysis in Python with pandas, seaborn, Plotly, and Statistics
Learn a practical step-by-step way to perform EDA in Python. This tutorial covers data loading, data checks, cleaning, descriptive analysis, distributions, o...
MySQL: Triggers
Triggers in SQL Triggers in SQL is a way to invoke something as a response to the events on the table in which Trigger is attached. The example of the event ...
Pyscript: Running Python in Webpages
Pyscript is a JS library that allows us to write and run Python code on HTML web pages. In this blog, we will explore PyScript for running Python codes insi...
Python Asyncio: Concurrent Programming
Introduction Async IO means Asynchronous I/O and it has been there since the Python 3.4. The main purpose of asyncio is to achieve Concurrency and Multiproce...
Python for Stock Market Analysis: Alpaca API
Introduction Alpaca Trading API is an API using which we can retrieve stock data in realtime. It provides various APIs and even streaming services. Please re...
Python for Stock Market Analysis: Getting Started into Modeling Timeseries
Introduction Hello there, this is the part 5 of Python for Stock Market Analysis and in this part, we will continue from where we left i.e. modeling a timese...
Python for Stock Market Analysis: Getting Started into Timeseries Analysis
Introduction This is the part 4 of our Python for Stock Market Analysis series and here, we will be getting started with timeseries analysis. This part will ...
Python for Stock Market Analysis: Growth Rates
Introduction Interactive plot version of blog is available at here.
Central Tendency vs Dispersion
Hello everyone, welcome back! In this blog we will again focus into the some of widely used central tendency techniques and then measure of spread in the Sta...
Python for Stock Market Analysis: Exploring Technical Trend Indicators
Introduction Hello and welcome back everyone to our second part of the new blog series Python for Stock Market Analysis. In the last part, we explored differ...
Running Airflow in WSL but Using MySQL Server from Windows as Default
Introduction There are lots of benefit of using MySQL as a backend database in Airflow. Main reason is that MySQL is widely used in production instead of SQl...
Python for Stock Market Analysis: Working with Moving Averages
Introduction This blog is a first part of our series Python for Stock Market Analysis.
Creating Awesome Data Dashboard with Plotly in Streamlit: Clustering
This is a continuation of our previous blog entitled as Creating Data Dashboards With Streamlit and Python.
Creating Awesome Data Dashboard with Plotly in Streamlit: EDA
Data Dashboards are getting highly popular because the need to get insights from data is getting increased. One of the few ways we find the insights from the...
Installing Julia in Windows and Running in Jupyter Notebook
Installation of Julia First download the installer from official site then run the installer. Set the environvent path variable. Test it by opening th...
Walkthrough of Statistical Analysis in Data Science
What is Statistical Analysis in Data Science?
Plotting interactive plots with Plotly and Cufflinks
Plotting High Quality Plots in Python with Plotly and Clufflinks
Branching Tasks in Airflow
Branching Task in Airflow When do we need to make a branch like flow of a task?
Connecting to MySQL Server in Windows Machine from WSL
Connecting MySQL Server in Windows Machine from WSL What does this mean? In simple sentence, how do we connect to a MySQL server which is hosted in Windows f...
Dynamic Tasks in Airflow
This blog is a continuation of previous blog Getting Started With Airflow in WSL.
Data Analysis and Importance of Groupby in Pandas but not Just pd.groupby
Data Analysis and Importance of Groupby in Pandas but not Just pd.groupby This blog will be continously updated as I find new ways, tricks to make things wor...
2021
Image Compression In Python: Huffman Encoding
Huffman Coding This blog will be completed with much more exercises on dataqoil.com.
Running Airflow in Windows with WSL
Getting Started With Airflow in WSL This blog will be updated more on dataqoil.com.
Gesture Based Calculator
Gesture Based Calculator Hello and welcome everyone to our last project on the #7DaysOfComputerVisionProjects series where we did some cool computer vision p...
Game: Kill a Fly
Kill The Fly Hello surfer, if you were following our series #7DaysOfComputerVisionProjects then this is the 6th project and this is going to be different and...
Gesture Based Visually Writing System
Gesture Based Writing Method Introduction Hello surfer, welcome to this blog where I will be writing a Python code to write something in canvas by moving fin...
Auto Trex: Playing Chrome Trex Game with Image Processing
Playing Trex Game With Image Processing Hello everyone, in the last part, we used gestures to perform jump and duck but in this part, we will not use gesture...
Playing Chrome Trex Game with Gestures
Play Trex Game on Chrome By Gesture Using OpenCV and Mediapipe Hello there surfer! Since few days, I am thinking about some cool projects that can be done w...
Air Mouse: Controlling Mouse With Gestures in Air
Air Mouse: Doing Mouse Operations Using Finger Gestures Hey surfer, in this blog, I am going to write about how can we do basic mouse operations like move po...
Realtime Background Changing in Python
Real Time Background Changing With OpenCV and Python This blog is the part of the series #7DaysOfComputerVisionProjects. Links to the blogs and videos of eac...
Image Compression In Python: Run Length Encoding
Run Length Encoding is one of the image compression algorithms that is lossless. So let’s get started. (Teaser Image taken from here.) If you are intere...
Getting Started With OpenCV in C/C++ in Windows
How to configure OpenCV for C/C++ in Windows? Installing OpenCV is very hard task because of various things like build error and Compiler Error. So in this t...
Messing Up With Convolutional Neural Nets: Autoencoder for Grayscale to RGB Image
I might stop writing new blogs on this site so please visit dataqoil.com for more cool kinds of stuff. Image colorization has recently been popular with the...
2020
Building Machine Learning Apps Faster With dstack.ai
Building Machine Learning Apps Faster With dstack.ai Happy New Year everyone!
Building Data Apps Faster With dstack.ai
Getting Started With dstack.ai This blog contains a minimal example of making data apps using dstack.
NEPSE Data Visualizing and Deploy it on Heroku
Introduction I might stop writing new blogs on this site so please visit dataqoil.com for more cool kinds of stuff.
Corn Leaf Infection Detection: Data Preprocessing and Custom Datagenerator
Introduction Here on this blog, I will be giving a gentle introduction about how to do Region Based Detection project on python from scratch. The scratch mea...
Deploying Face Mask Classifier on Heroku: Deploy on Heroku
I might stop writing new blogs on this site so please visit dataqoil.com for more cool kinds of stuff.
Deploying Face Mask Classifier on Heroku: Train Classifier
This is a part 1 of a blogging series. Part 1: Deploying Face Mask Classifier on Heroku: Building a Classifier Part 2: Deploying Face Mask Classifier on...
OCR For Devanagari Handwritten Character: Web APP
This is a part 3 of a blogging series. Part 1: OCR for DHC: Building a Classifier Part 2: OCR for DHC: Segmentation, Localization and First Version Pa...
OCR For Devanagari Handwritten Character: Segmentation, Localization using NumPy
A localization, segmentation and the first version of OCR using NumPy.
OCR For Devanagari Handwritten Character: Building a Classifier
A Devanagari Handwritten Characters Classifier using CNN on Keras.
Contour Based Game: Break The Bricks
Contents
Drawing Simple Geometrical Shapes on Python Using NumPy and Visualize It
Contents Drawing Simple Geometrical Shapes on Python from scratch, have you tried it?
Deploying a Simple RASA Chatbot on Unity3d Project to Make a Chatbot for Android Devices
Creating a Chatbot on Android Using Unity3d and RASA I might stop writing new blogs on this site so please visit dataqoil.com for more cool kinds of stuff.
Gesture Based Visually Writing System Using OpenCV and Python
This is the first part of Gesture Based Visually Writing System. Gesture Based Visually Writing System Using OpenCV and Python Gesture Based Visually Wr...
Writing Popular Machine Learning Optimizers From Scratch on Python
Contents Before begining, 2. Contains 2.1 Initialize our class Gradient Descent 2.3 Momentum Optimizer 2.4 Adagrad 2.5...
Image Processing Class from Scratch on Python
Contents 1.1 What am I using? 1.2 What this blog includes? 2 Steps Initializing a ImageProcessing class Adding a read method Add...
Writing a Deep Neural Network from Scratch on Python
Contents Updates: 1.1 What I am covering on this blog? 2. Warning 3. Steps 3.1 Creating a FF layer class. 3.1.1 As usual, importing nece...
Unity has provided 3 months of Unity Learning Premium free for all
Due to current global threat of COVID-19, unity is providing free access to all the contents of Unity Learn platform. And as a life long learner, I am wri...
Text Classification using Naive Bayes, Scratch to the Framework
So this is not a blog for introduction to naive bayes but implementation way for spam message classification. I have also created a YouTube video for this t...
Guidance For AI Game Development Using Unity
Contents As becoming a Machine Learning enthusiast, I searched for some resources where I can learn Reinforcement Learning. Then at the same time I found a...
Building OCR For Devanagari Handwritten Character
Using Keras, OpenCv, Numpy build a simple OCR. Contents Inspiration Devanagari is popular across India and Nepal. It is also a National font of ...
Crowd Counting Made Easy
Contents Experience Of Being Udacity Scholar: As a scholar of Udacity’s Secure and Private AI Challenge course by Facebook, I have not only learned abo...
Beginning of my blogging journey.
Contents I thought of doing blogging since school but guess what, the internet was not that much available like these days. After years, I am about to write...