Counting stars

A simple web app for counting stars ⭐⭐⭐

Technologies used:

• CSS3
• JavaScript
• HTML5
• Marvin JS (image manipulation)

Basis algorithm (counting bright groups of pixels)

1. Resize input image.
2. Umbralize image using three different thresholds.
3. For each umbralized image:
   • Count groups of white pixels using DFS (Depth-First Search).
4. Sum counts and calculate the average.

Usage

Upload a starry nigth photo

You can see the result, click at Clear to try with another photo

Notes:

• If you want to contribute feel free to create a Pull Request.