Chroma key App

A college project in Python using OpenCV.
Description: a simple app that takes two images - one with green areas, the other a background image, and outputs an image with the green areas replaced with the background image.

Content

• Dependencies
• Installation
• Usage

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Dependencies

1. Python 3.7.0

The app could work with different versions, but this is the one that was tested.

Installation

1. Create a new directory, for example chromakey, and place app.py inside of it.
2. Open the directory in your Terminal:

cd chromakey

3. Create a virtual environment:

python -m venv opencv-env

4. Activate the environment :

.\opencv-env\Scripts\activate

5. Install needed packages:

pip install opencv-contrib-python matplotlib

Usage

1. Run the app using the following syntax:

python app.py img_filename bk_filename ofilename

While:

• img_filename - path to an image with a 'green screen'.
• bk_filename - path to the background.
• ofilename - path to save the edited image, if none is provided it'll be displayed instead.