📸 EdgeViewer – Android Image Viewer (OpenGL ES)

EdgeViewer is a simple Android app that displays images using OpenGL ES 2.0.
This project was completed as part of an internship assignment.

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🚀 Features

• 📱 Displays any bitmap using OpenGL ES 2.0
• 🎨 Uses a custom GLSurfaceView + Renderer
• ⚡ Efficient GPU texture loading
• 🧩 Clean and modular Kotlin code
• 🖼️ Supports PNG/JPG image rendering
• 📂 Easy to extend for shaders, filters, or edge detection

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🛠️ Tech Stack

• Kotlin
• OpenGL ES 2.0
• GLSurfaceView / GLSurfaceView.Renderer
• Android Studio (Hedgehog / Latest)

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📂 Project Structure

app/
 ├── src/main/java/com/example/edgeviewer/gl/
 │    ├── MainActivity.kt
 │    ├── EdgeGLSurfaceView.kt
 │    ├── EdgeRenderer.kt
 │    └── NativeLib.kt
 │
 ├── src/main/res/drawable/
 │    └── test.png
 │
 └── src/main/res/layout/
      └── activity_main.xml

📷 Screenshots

🖼️ App Output

Displays the uploaded PNG:

📁 Project Folder Structure

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🌐 Web Debug Viewer

A lightweight web tool to preview processed frames exported from the Android app.

Run Web Viewer:

cd web
npm install
npm run build
npm run start

Then open:
👉 http://localhost:3000

Web Output

## ▶️ How to Run

1. Clone the repository

   git clone https://github.com/starkbbbk/EdgeViewer.git