G11-2024

import cv2 as cv

import numpy as np

import tkinter as tk

from tkinter import filedialog, messagebox

import os

from PIL import Image, ImageTk

import configparser

class ImageIO:

    ## \class This class is in charge of image input and output

    def __init__(self, shared_data):

        ## \breif

        # Initializator for whole method.

        # Get parsed config file data from the class 'SharedData'

        # \param self the class itself

        # \param shared_dara parsed config file

        # \return None

        #

        # \warning This method will not check config data is valid or not

        self.shared_data = shared_data

    def load_image(self, path):

        ## \breif Function for loading image

        # \param path Path of the image

        # \return numpy array, image

        #

        # \warning This method does not check the file format or image content

        return cv.imread(path, cv.IMREAD_COLOR)

    def write_image(self, img, fileName="image.png"):

        ## \breif Function to manipulate the image

        # \param img Loaded image, numpy matrix

        # \param fileName Name of the image. "image.png" will be the default vale if there are no input

        # \return None

        if cv.imwrite(fileName, img):

            print(f"File {fileName} Written Successfully")

        else:

            print("File writing failed")

    def show_image(self, img, title="Image Title", canvas=None):

        ## \breif Function to print image through the projector

        # \param img Numpy matrix, loaded image

        # \param title Title of the window. 'Image Title' will be the default value when there is no input.

        # \paran Canvas parameter needed for library 'Tinker Canvas'. None is default value.

        # \return None

        img_rgb = cv.cvtColor(img, cv.COLOR_BGR2RGB)

        img_pil = Image.fromarray(img_rgb)

        img_tk = ImageTk.PhotoImage(img_pil)

        canvas.update_idletasks()  # Force the canvas to update its dimensions

        canvas_width = canvas.winfo_width()  # Get the updated canvas width

        if self.shared_data.isLeft:

            # Align image to the top-right corner

            canvas.create_image(canvas_width, 0, anchor=tk.NE, image=img_tk)

        else:

            # Align image to the top-left corner

            canvas.create_image(0, 0, anchor=tk.NW, image=img_tk)

        canvas.image = img_tk  # Prevent image from being garbage collected