有没有办法将颜色变化的网格动画化为文本？

import numpy as np
import matplotlib.pyplot as plt
from PIL import Image, ImageDraw, ImageFont

# 生成颜色变化的网格动画
def generate_animation(size, frames):
    for i in range(frames):
        grid = np.random.randint(0, 256, (size, size, 3), dtype=np.uint8)
        img = Image.fromarray(grid)
        img.save(f"frame_{i}.png")

# 将图像转换为文本
def image_to_text(image_path, text_path):
    img = Image.open(image_path)
    draw = ImageDraw.Draw(img)
    font = ImageFont.load_default()
    text = ""
    for y in range(img.height):
        for x in range(img.width):
            r, g, b = img.getpixel((x, y))
            char = "X" if (r + g + b) // 3 > 128 else " "
            draw.text((x, y), char, fill="black", font=font)
            text += char
        text += "\n"
    with open(text_path, "w") as f:
        f.write(text)

# 生成动画并转换为文本
generate_animation(10, 5)
for i in range(5):
    image_to_text(f"frame_{i}.png", f"frame_{i}.txt")