tejashwi.io

Technology explored

Category Machine learning

Training Yolo v3 model using custom dataset on Google colab

YOLO (You Only Look Once) trades some accuracy for speed. Instead of running a classifier at multiple locations and scales, YOLO applies a single neural network to the full image....

Object detection with Fizyr Retinanet

One-stage detectors struggle with class imbalance: most candidate regions contain background, not objects. RetinaNet uses focal loss to address this. Easy negative samples contribute less to the loss, so training...

Category Python

Training Yolo v3 model using custom dataset on Google colab

YOLO (You Only Look Once) trades some accuracy for speed. Instead of running a classifier at multiple locations and scales, YOLO applies a single neural network to the full image....

Object detection with Fizyr Retinanet

One-stage detectors struggle with class imbalance: most candidate regions contain background, not objects. RetinaNet uses focal loss to address this. Easy negative samples contribute less to the loss, so training...

Category Colab

Training Yolo v3 model using custom dataset on Google colab

YOLO (You Only Look Once) trades some accuracy for speed. Instead of running a classifier at multiple locations and scales, YOLO applies a single neural network to the full image....

Object detection with Fizyr Retinanet

One-stage detectors struggle with class imbalance: most candidate regions contain background, not objects. RetinaNet uses focal loss to address this. Easy negative samples contribute less to the loss, so training...

Category Raspberry

Tiny Pi Pro, a super tiny gaming handheld based on Raspberry Pi Zero

When the TinyPi Pro kit arrived, I wasn’t sure I could actually play games on something this small. The whole thing fits on a keychain. But it works.

Relive retro gaming with Raspberry Pi

Retro gaming got popular as emulators improved and internet access spread. Some people prefer older games because they remember them from childhood. Others think the constraints of early hardware forced...

Category Electronics

The journey of ssd1306xled: from debugging to open source maintenance

I had some ATtiny85 chips lying around my desk. These 8-pin microcontrollers are popular for small projects: 8KB of flash, 6 GPIO pins, and enough grunt to run simple games....

A tiny game console based on Attiny85

I had some Attiny85 chips lying around my desk and a few free days, so I went looking for projects. I found that Daniel Champagne had already created several games...

Tiny Pi Pro, a super tiny gaming handheld based on Raspberry Pi Zero

When the TinyPi Pro kit arrived, I wasn’t sure I could actually play games on something this small. The whole thing fits on a keychain. But it works.

Relive retro gaming with Raspberry Pi

Retro gaming got popular as emulators improved and internet access spread. Some people prefer older games because they remember them from childhood. Others think the constraints of early hardware forced...

Category DIY

A tiny game console based on Attiny85

I had some Attiny85 chips lying around my desk and a few free days, so I went looking for projects. I found that Daniel Champagne had already created several games...

Tiny Pi Pro, a super tiny gaming handheld based on Raspberry Pi Zero

When the TinyPi Pro kit arrived, I wasn’t sure I could actually play games on something this small. The whole thing fits on a keychain. But it works.

Relive retro gaming with Raspberry Pi

Retro gaming got popular as emulators improved and internet access spread. Some people prefer older games because they remember them from childhood. Others think the constraints of early hardware forced...

Category windows

Flicker-free text scrolling with Double buffering in Windows

If you’ve tried scrolling text over an image in a Win32 application, you’ve probably seen flickering. The text doesn’t draw cleanly over the background. This happens because Windows repaints the...

Introduction to software reverse engineering

Reverse engineering is taking apart software to understand how it works. Security researchers use it to analyze malware. Testers use it for black-box security analysis. Sometimes you just want to...

Changing Windows Aero color with Win32 programming

Windows Vista introduced the Desktop Window Manager (DWM), which uses hardware acceleration for the UI and enables the Aero glass effects. Each program writes to its own buffer, and DWM...

Category win32api

Flicker-free text scrolling with Double buffering in Windows

If you’ve tried scrolling text over an image in a Win32 application, you’ve probably seen flickering. The text doesn’t draw cleanly over the background. This happens because Windows repaints the...

Changing Windows Aero color with Win32 programming

Windows Vista introduced the Desktop Window Manager (DWM), which uses hardware acceleration for the UI and enables the Aero glass effects. Each program writes to its own buffer, and DWM...

Category Reverse Engineering

Introduction to software reverse engineering

Reverse engineering is taking apart software to understand how it works. Security researchers use it to analyze malware. Testers use it for black-box security analysis. Sometimes you just want to...

Category Development

GoTune: Exploring Clean Architecture in Desktop Applications

Back in college, I built a Windows music player called Tejash Player using C and the Win32 API. It worked well enough to get published on Softpedia, but the code...

Category Go

GoTune: Exploring Clean Architecture in Desktop Applications

Back in college, I built a Windows music player called Tejash Player using C and the Win32 API. It worked well enough to get published on Softpedia, but the code...

Category Projects

GoTune: Exploring Clean Architecture in Desktop Applications

Back in college, I built a Windows music player called Tejash Player using C and the Win32 API. It worked well enough to get published on Softpedia, but the code...

Category Open Source

The journey of ssd1306xled: from debugging to open source maintenance

I had some ATtiny85 chips lying around my desk. These 8-pin microcontrollers are popular for small projects: 8KB of flash, 6 GPIO pins, and enough grunt to run simple games....