# 依赖目录pip install python-pptx Pillow imagehash
from pptx import Presentation
from pptx.util import Inches
from PIL import Image
import imagehash
import os

def is_similar_image(image_path, reference_image_path, similarity_threshold=0.7):
    """
    检查两张图片之间的相似度
    """
    img1 = Image.open(image_path)
    img2 = Image.open(reference_image_path)

    # 计算哈希值
    hash1 = imagehash.average_hash(img1)
    hash2 = imagehash.average_hash(img2)

    # 计算相似度（1 - 汉明距离 / 哈希位数）
    similarity = 1 - (hash1 - hash2) / len(hash1.hash) ** 2
    return similarity >= similarity_threshold

def remove_copyright_images(pptx_path, copyright_image_paths):
    # 打开 PowerPoint 文件
    prs = Presentation(pptx_path)

    # 使用一个列表来记录要删除的幻灯片索引
    slides_to_delete = []

    # 遍历每一页幻灯片
    for index, slide in enumerate(prs.slides):
        # 遍历幻灯片中的每个形状
        for shape in slide.shapes:
            # 检查形状是否为图片
            if shape.shape_type == 13:  # 13 表示图片
                # 临时保存图片
                temp_image_path = 'temp_image.png'
                with open(temp_image_path, 'wb') as f:
                    f.write(shape.image.blob)

                # 检查相似度
                for copyright_image in copyright_image_paths:
                    if is_similar_image(temp_image_path, copyright_image):
                        print(f"有相似的图片,在第{index + 1}页")
                        # 删除该形状
                        slide.shapes._spTree.remove(shape._element)

                        slides_to_delete.append(index)  # 记录要删除的幻灯片
                        break  # 找到相似图片后可以跳出循环

                # 删除临时图片
                os.remove(temp_image_path)

    # 删除记录中的幻灯片
    for index in slides_to_delete:
        slides = list(prs.slides._sldIdLst)
        current_slide_to_delete = slides[index]
        prs.slides._sldIdLst.remove(current_slide_to_delete)

    if(len(slides_to_delete) > 0):
        # 保存修改后的 PowerPoint 文件
        prs.save(pptx_path)
    else:
        print(f"{pptx_path}没有版权信息，不需要删除")

# 使用示例
pptx_file_path = '/Users/minya/Desktop/test/1.pptx'  # 输入 PowerPoint 文件路径
copyright_image_paths = ['/Users/minya/Desktop/test/1.png']  # 版权图片路径列表

remove_copyright_images(pptx_file_path, copyright_image_paths)