An image-processing project to group pixels of images and create cool effects!
- @O4FDev - Creator
Contributions are always welcome!
See contributing.md for ways to get started.
I am in the process of setting up a FastAPI for this project.
Install ShadowMirror's requirements with pip
pip install -r requirements.txt
python ShadowMirror.pyI used Open-CV for the image processing and Numpy for the array manipulation.
Placeholder answer 2
For support, email luke.lucas@ou.ac.uk or join the NI Tech Slack and post a message in the PyBelfast channel (follow all the rules of the slack please) and I will message you as quickly as possible, please also try to tag me @Luke if you can find me.
Here is an overview of the algorithms I have used in this project.
The radii of the circles is calculated by the following formula:
The average brightness is the average of the brightness of the pixels in any given sub group of pixels. The sub group size is calculated by the following formula:
sub_group_size = 10 # Static number, looking into a better way to do this
sub_group_total_y = img.shape[0] // sub_group_size
sub_group_total_x = img.shape[1] // sub_group_size
sub_group_total = sub_group_total_y * sub_group_total_xWe then loop over a list of the coordinates, radius, etc and create a circle at the centre of each sub group.
Almost all of the colour is created in this one line of code:
colours.append(
(x * sub_group_size, y * sub_group_size, brightness))This creates a 3 arguments value for each colour from 0 to 255. Allowing us add the colour to the image using colours[i]
If you're interested this far, fair chances you'd be interested in "Halftone Image Processing" there's a great post here talking about the algorithms.