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  • # Function Overview
    
    ## **Tracing Sutures (Interactive Path Tracing in 2D Images)**
    _This project seeks to develop a GUI enabling users to interactively create and extract paths in 2D images._
    
    ---
    
    ## **Functions List**
    
    - 'set_img_path'
        - Takes the path to the image as input.
        - Sets self.path.
        - Is triggered on button click.
    
    - 'load_img'
        - Takes self.path as input.
        - Displays the input image on the GUI.
        - Is triggered on button click.
    
    - 'start_edit'
        - Takes no input.
        - Sets self.editEnabled to true.
        - Is triggered on button click.
    
    - 'calc_gradients'
        - Takes self.path as input.
        - Calculates gradients in input image and saves as self.gradient
        - Is triggered by 'load_img'.
    
    - 'set_point'
        - Takes no input.
        - Creates a point of the spline on the image when the users clicks left clicks.
        - Adds the point to self.points.
    
    - 'remove_point'
        - Takes no input.
        - Removes the point the user is hovering over when the user right clicks.
        - Removes the point from self.points.
    
    - 'update_alpha'
        - Updates self.alpha.
        - Is triggered by slider.
    
    - 'update_beta'
        - Updates self.beta.
        - Is triggered by slider.
    
    - 'active_contour'
        - Takes self.points, self.gradient, self.alpha and self.beta as inputs.
        - Performs active contour for finding the curve.
        - Displays the found _snake_.
    
    - 'set_export_path'
        - Sets self.exportPath to the path chosen (by GUI-popup?) by the user.
    
    - 'export_line'
        - Takes self.exportPath as input.
        - Creats a new np-array file on the chosen path containing the found snake.
    
    
    ## 📎 **Notes**
    _This is only a rough first draft/overview of the functions needed for the project._
    
    ---
    
    **Author:** Christian Bjerregaard
    **Date:** 07-01-2025