YouTube Video Slide Extractor with Text Recognition and PowerPoint Export

This Streamlit app converts YouTube videos into PowerPoint presentations by extracting unique slides, applying Optical Character Recognition (OCR) to detect text, and generating a downloadable PowerPoint (.pptx) file. It’s designed for educators, students, professionals, or anyone who needs to quickly convert video content into organized, text-annotated slides.

Key Features

• YouTube Video Download: Provide a YouTube URL to download the video in the best available quality.
• Frame Extraction: Extract frames at regular intervals to capture key slides or visuals.
• Unique Slide Detection: Filters out duplicate frames using perceptual hashing to ensure only unique slides are included.
• Text Recognition (OCR): Extracts text from the slides using Tesseract OCR.
• PowerPoint Export: Generates a PowerPoint presentation with slides and recognized text, ready for download.

Tech Stack

• Python: For backend processing.
• Streamlit: For the user interface.
• OpenCV and PIL: For video processing and frame extraction.
• imagehash: For perceptual hashing to detect unique slides.
• pytesseract: For Optical Character Recognition (OCR) to extract text from slides.
• python-pptx: To generate PowerPoint files.
• yt-dlp: To download videos from YouTube.

Installation

1. Clone the Repository

git clone git@github.com:Adityakeshav/youtube-slide-extractor.git
cd youtube-slide-extractor

2. Install Required Dependencies

Ensure Python 3.7+ is installed, then install the necessary packages:

pip install -r requirements.txt

3. Install Tesseract OCR

You’ll need Tesseract OCR for text recognition. Follow the installation instructions for your OS:

• Windows: Download from Tesseract OCR's official repository.
• Linux: Install via package manager:

  sudo apt install tesseract-ocr

• macOS: Use Homebrew:

  brew install tesseract

Ensure Tesseract is added to your system’s PATH.

Usage

1. Run the Streamlit app:

   streamlit run app.py

2. Open the app in your browser. You will see a text input field to enter a YouTube video URL.

3. Enter the URL of the YouTube video you wish to convert into a PowerPoint.

4. Click Process Video. The app will download the video, extract frames, detect unique slides, apply OCR to extract text, and create a PowerPoint file.

5. After processing, you can review the slides and text extracted. You can then download the PowerPoint file directly from the app.

Example Use Cases

• Educational Content: Convert video lectures into PowerPoint slides.
• Meeting Summaries: Extract key points from recorded webinars or meetings and compile them into presentations.
• Content Archiving: Save slides from tutorials or presentations in a structured format.