Python"傻瓜式"处理PPT

Python,Share 2024-08-20 40 次浏览 次点赞

业界有一句话,Python除了不能生孩子,其他的都能做。

最近处理模型的热图,需要将有无损失函数的图片生成然后放到PPT里去对比,从百十个类别中挑图就很费时间了,调完还需要贴到PPT里,我开始是把每个类别中比较好的图片名记下来,应该当时直接复制到PPT里的,但想着统计一下嘛,后来还得根据类名+图片名从源文件夹中挑,当然,挑了一阵子我感觉不能这么干,还得写个脚本让它自己挑

如下:

import os
import shutil


txt_path = "./contrastive.txt"
with open(txt_path, 'r', encoding='utf-8') as file:
    for line in file:
        print(line.strip())
        split_list = line.strip().split(":")
        print(split_list[0], split_list[1])
        class_nu = split_list[0]
        print(f"class_nu:{class_nu}")
        img_name_str = split_list[1]
        fmujiehot_path = "./Fmujiehot_5"
        origin_path = "./valClass"
        os.makedirs(os.path.join(class_nu), exist_ok=True)
        img_name_list = img_name_str.split("、")
        print(img_name_list)

        current_class_folder_name = fmujiehot_path
        class_folder_list = os.listdir(fmujiehot_path)
        print(class_folder_list)

        for class_folder_name in class_folder_list:
            if class_folder_name.split(".")[0] == class_nu:
                print(class_folder_name)
                origin_class_path = os.path.join(origin_path, class_folder_name)
                print(f"origin_class_path:{origin_class_path}")
                current_class_folder_name = os.path.join(fmujiehot_path, class_folder_name)

                break

        print(current_class_folder_name)

        for img_name in img_name_list:
            current_img_path = os.path.join(current_class_folder_name, img_name + '.jpg')
            print(f"current_img_path:{current_img_path}")
            shutil.copy(current_img_path, class_nu)

            origin_img_path = os.path.join(origin_class_path, img_name + '.jpg')
            new_origin_img_path = origin_img_path.replace(img_name, img_name + "_origin")
            # os.rename(origin_img_path, new_origin_img_path)
            shutil.copy(origin_img_path, new_origin_img_path)
            shutil.copy(new_origin_img_path, class_nu)
            print(f"origin_img_path:{origin_img_path}")

            vit_img_path = current_img_path.replace("Fmujiehot_5", "vithot_5")
            print(vit_img_path)
            new_vit_img_path = vit_img_path.replace(img_name, img_name + "_5")
            print(f"new_vit_img_path:{new_vit_img_path}")
            # os.rename(vit_img_path, new_vit_img_path)
            shutil.copy(vit_img_path, new_vit_img_path)
            shutil.copy(new_vit_img_path, class_nu)

很简单,就是你统计了一个txt文件,里边有类名和图片名,根据这个文件分门别类存放就行了,少的话可以手动找,多了还是自动找吧。

找完后在文件夹里还得自己翻着查看,挺麻烦的,不如在PPT里上下翻页方便。

所以说,就应该挑出来直接贴PPT里,上述小插曲~

关键是 可视化方式不同,你文件夹会有好多,贴的时候头疼。特别是每个文件夹中还好多类别文件夹,每个类别文件夹下还有好几张图片,更头疼。

现在目录假设是这样的:

`valimg:.
├─Method1_hot
│ ├─cls_num_1
│ ├─cls_num_2
│ ……
│ ├─cls_num_n-1
│ └─cls_num_n
├─Method2_hot
│ ├─cls_num_1
│ ├─cls_num_2
│ ……
│ ├─cls_num_n-1
│ └─cls_num_n`

cls_num/内就是具体的图片

现在要用pythonpython-pptx库来傻瓜式操作了,先安装

pip install python-pptx
import os
from pptx import Presentation
from pptx.util import Inches, Cm
from PIL import Image


# 创建一个新的演示文稿
prs = Presentation()
# 设置幻灯片尺寸为16:9(宽度为 33.867 cm,高度为 19.05 cm)

slide_width = Inches(13.333)  # 33.867 cm
slide_height = Inches(7.5)    # 19.05 cm
prs.slide_width = slide_width  # 33.867 cm
prs.slide_height = slide_height     # 19.05 cm


def resize_image_to_slide(image_path, slide_width, slide_height):
    # 打开图片并获取原始尺寸
    with Image.open(image_path) as img:
        img_width, img_height = img.size

        # 计算宽高比
        img_ratio = img_width / img_height
        slide_ratio = slide_width / slide_height

        # 计算缩放比例
        if img_ratio > slide_ratio:
            new_width = slide_width
            new_height = new_width / img_ratio
        else:
            new_height = slide_height
            new_width = new_height * img_ratio

        return new_width, new_height


# 文件夹路径
folder_base_path = r"./valimg/"
folder_name_list = ["Method1_hot", "Method2_hot", "Method3_hot", "Method4_hot"]
each_folder_base_path = os.path.join(folder_base_path, folder_name_list[0])

# 获取文件夹下的类别名称
for each_cls_folder_name in os.listdir(each_folder_base_path):
    # 获得类别目录
    each_cls_path = os.path.join(each_folder_base_path, each_cls_folder_name)
    # 获得类别目录下的文件列表
    for img_file in os.listdir(each_cls_path):
        if img_file.lower().endswith(('.png', '.jpg', '.jpeg', '.bmp', '.gif')):
            # 启用占位符辅助
            auxiliary_each_cls_path = each_cls_path.replace(folder_name_list[0], "placeholder")
            for img_type in folder_name_list:
                # 添加幻灯片
                slide_layout = prs.slide_layouts[5]  # 使用空白布局
                slide = prs.slides.add_slide(slide_layout)
                # 获得图片路径
                img_path = os.path.join(auxiliary_each_cls_path, img_file)
                # 根据不同文件夹更改路径str
                img_path = img_path.replace("placeholder", img_type)
                # 获取调整后的图片尺寸
                new_width, new_height = resize_image_to_slide(img_path, slide_width, slide_height)

                # 计算图片在幻灯片上的位置(居中)
                left = (slide_width - new_width) / 2
                top = (slide_height - new_height) / 2

                pic = slide.shapes.add_picture(img_path, left, top, width=new_width, height=new_height)


# 保存演示文稿
prs.save('./output_presentation.pptx')

这样按照顺序,有无损失函数+不同的可视化方法直接放一块,几秒钟150+张图片,比手动进不同文件夹去Ctrl+C/V快了N倍,虽然写代码会费点时间,但是后续还需要其他数据集的热图对比,这样看,效率高多了。

虽然能够不用鼠标,光靠键盘快捷键就可以去不同文件夹下找找图片复制粘贴,但这种傻瓜式操作真的累,手能给你按抽筋,别问我咋知道的,高强度固定几个键位高频按就是会这样~

自动化深得我心~~


本文由 fmujie 创作,采用 知识共享署名 3.0,可自由转载、引用,但需署名作者且注明文章出处。

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