tixy-fitter

Python script to fit sets of polynomials to images to turn the images into tixy compatible functions.

Overview

This repository contains a script written for the course Praktische Informatik 1: Deklarative Programmierung. The script takes a set of images, rescales them and fits a set of polynomial functions to the image to turn each image into a Racket function that is compatible with a Racket implementation of https://tixy.land/

Issues and Bug Reports

Please open an issue if you find any errors or unexpected behavior. Please make sure to document:

1. What you tried
2. What the result was
3. What you expected the result to be
4. Steps (if any) which you took to resolve the issue and their outcomes.

Requirements

This script was developed using Python version 3.9.2

The following packages are required

• pillow
• numpy
• scipy
• matplotlib (optional, used for visualization)

Usage

This script generates a .rkt file that can be imported into other racket projects using require, aswell as an optional preview

Input

The script requires a black and white video split into frames.

Parameters

• directory_in (string): Input directory
• directory_out (string): Ouptut directory
• rkt_out (string): Filename of Racket file to generate
• func_name (string): Function name of the Racket function to generate (Signature t i x y )
• n_images (integer): Number of Images in the Input directory, needed for the modulo operator to repeat the animation
• tixy_size (integer): Size of the Tixy Grid
• render (boolean): if True, a preview of the process is rendered to the output dir for each image
• maxfev_ (integer): number of iterations to fit for each function