main.py

#!/usr/bin/env python3
import argparse
from tkinter import *

from PIL import Image
from tqdm import tqdm


def reduce_resolution(image_path, new_height):
    with Image.open(image_path) as img:
        width, height = img.size

        reduction_factor = new_height / height

        new_width = int(width * reduction_factor)

        img = img.resize((new_width, new_height), resample=Image.BOX)

        return img


def convert2D(liste):
    list2d = []

    lines = []

    ii = 0

    for i in liste:
        if ii >= im.width - 1:
            ii = 0
            list2d.append(lines)
            lines = []
        else:
            lines.append(i)
            # print(lines)
            ii += 1
    lines.append(i)
    list2d.append(lines)
    return list2d


parser = argparse.ArgumentParser(
    description="Transform an image into asciis characters."
)
parser.add_argument("-p", "--picture", help="Picture file to use.", required=True)
parser.add_argument(
    "-he",
    "--height",
    help="Ascii art result height (In numbers of characters)",
    required=False,
    default=500,
)
args = parser.parse_args()


img_filename = args.picture
img_height = int(args.height)


im = reduce_resolution(img_filename, img_height).convert("L")


pixelles = convert2D(list(im.getdata()))


CHARS = [
    "ㅤㅤㅤ",
    "+++",
    "***",
    "===",
    "%%%",
    "###",
    "@@@",
    "&&&",
    "$$$",
    "MMM",
    "WWW",
    "888",
    "▌▌▌",
    "▬▬▬",
    "▒▒▒",
    "███",
    "▓▓▓",
]


result = ""

test = 0

for i in tqdm(range(0, len(pixelles)), desc="Loading..."):
    result += "\n"

    for ii in range(0, len(pixelles[i])):
        result += CHARS[int(pixelles[i][ii] // (256 / len(CHARS)))]


root = Tk()
root.resizable(True, True)
root.title("ASCII art Generator")


root.geometry("700x350")


root.grid_columnconfigure(0, weight=500)
root.grid_rowconfigure(0, weight=500)


text = Text(root, height=im.height, wrap=NONE)
text.grid(row=0, column=0, sticky=EW)
text.config(font=("Helvetica bold", 1))


scrollbarVert = Scrollbar(root, orient="vertical", command=text.yview)
scrollbarVert.grid(row=0, column=1, sticky=NS)


scrollbarHor = Scrollbar(root, orient="horizontal", command=text.xview)
scrollbarHor.grid(row=1, column=0, sticky=EW)

text["yscrollcommand"] = scrollbarVert.set
text["xscrollcommand"] = scrollbarHor.set


text.insert(1.0, result)

root.mainloop()