图片版权保护如何创建

from PIL import Image, ImageDraw, ImageFont

def add_watermark(input_image_path, watermark_text, output_image_path):
    photo = Image.open(input_image_path).convert("RGBA")
    width, height = photo.size

    # 创建一个透明的图层
    watermark = Image.new('RGBA', photo.size, (255, 255, 255, 0))
    draw = ImageDraw.Draw(watermark)

    # 设置水印字体和大小
    font = ImageFont.truetype("arial.ttf", 36)
    textwidth, textheight = draw.textsize(watermark_text, font)

    # 计算水印位置
    x = width - textwidth - 10
    y = height - textheight - 10

    # 添加水印
    draw.text((x, y), watermark_text, font=font, fill=(255, 255, 255, 128))

    # 合并图片
    watermarked_photo = Image.alpha_composite(photo, watermark)
    watermarked_photo.save(output_image_path)

# 使用示例
add_watermark('input.jpg', 'Copyright © 2023', 'output.jpg')

© 2023 Your Name. All rights reserved.

from Crypto.Cipher import AES
from Crypto.Random import get_random_bytes
from Crypto.Util.Padding import pad, unpad
import base64

def encrypt_image(image_path, key):
    with open(image_path, 'rb') as f:
        image_data = f.read()

    iv = get_random_bytes(16)
    cipher = AES.new(key, AES.MODE_CBC, iv)
    encrypted_data = cipher.encrypt(pad(image_data, AES.block_size))

    with open('encrypted_image.bin', 'wb') as f:
        f.write(iv + encrypted_data)

def decrypt_image(encrypted_image_path, key):
    with open(encrypted_image_path, 'rb') as f:
        iv = f.read(16)
        encrypted_data = f.read()

    cipher = AES.new(key, AES.MODE_CBC, iv)
    original_data = unpad(cipher.decrypt(encrypted_data), AES.block_size)

    with open('decrypted_image.jpg', 'wb') as f:
        f.write(original_data)

# 使用示例
key = get_random_bytes(16)  # 16字节密钥
encrypt_image('input.jpg', key)
decrypt_image('encrypted_image.bin', key)