FontGenerator — Handwriting Font App 🖊️

An Android app that captures your unique handwriting style and converts any typed text into your own personalized font.

Java Android Canvas API Image Processing

Screenshots

✨ Features

• Draw all 26 letters (A–Z) on a touch canvas
• Save each letter as stroke path data
• Type any sentence and preview it in your handwriting
• Diary-style page rendering with ruled lines
• Apply Laplacian image sharpening filter
• Export final result as PNG image

🛠️ Tech Stack

• Language: Java
• Min SDK: API 24 (Android 7.0)
• Drawing: Android Canvas & Path API
• Storage: SharedPreferences (JSON)
• Export: MediaStore API
• Image Processing: 8-neighbor Laplacian Filter

📂 Project Structure

com.example.fontgenerator/
├── drawing/
│   ├── DrawingActivity.java
│   ├── DrawingView.java
│   └── LetterData.java
├── typing/
│   ├── TypingActivity.java
│   └── RenderView.java
├── processing/
│   └── LaplacianProcessor.java
└── utils/
    ├── StorageHelper.java
    └── ExportHelper.java

🔬 Image Processing

Uses the 8-neighbor Laplacian convolution mask:

[ -1 -1 -1 ]
[ -1  8 -1 ]
[ -1 -1 -1 ]

Formula: output = original - laplacian

🚀 Future Work

• PDF export
• Fallback system fonts for undrawn letters
• Multiple font folder management
• Natural handwriting variation
• Ink & paper color customization

👤 Author

Built by Areeba Ghaffar GitHub: @AreebaGhaffar