Invisible

Like the song which is totally present in the MGS series.

I got a bout of inspiration and built this in about a day.

Note: Only works on Wayland right now due to the usage of grim as the screenshot utility.

Demo

solid.mp4

What It Does

This tool constantly monitors your screen and:

• Matches visual content using ORB + OpenCV
• Extracts text using Tesseract OCR and checks for relevant keywords
• Captures the screen using grim (Wayland screenshot utility)
• Plays an MP4 audio clip using ffplay from FFmpeg
• Displays a fullscreen animated overlay using PyQt5

Requirements

• Python 3.8 or newer
• Wayland display server
• Tesseract OCR
• ffplay (part of FFmpeg)

Python Dependencies

Install using pip:

pip install opencv-python pytesseract PyQt5

For Arch Linux Users

Install all system dependencies with:

sudo pacman -S \
  tesseract tesseract-data-eng \
  python-pytesseract opencv python-opencv \
  python-pyqt5 grim ffmpeg --needed

Usage

Run the detector script:

python3 main.py