使用 Python 和 Pillow 给装修现场照片批量打时间水印并拼成施工日记九宫格(中文路径/EXIF 坑)

from pathlib import Path
root = Path(r"D:/装修照片/水电")
imgs = sorted(p for p in root.glob("*") if p.suffix.lower() in (".jpg", ".jpeg", ".png"))

from PIL import Image, ExifTags
def fix_orientation(img):
    try:
        exif = img._getexif()
        if not exif:
            return img
        for k, v in exif.items():
            if ExifTags.TAGS.get(k) == "Orientation":
                if v == 3:
                    img = img.rotate(180, expand=True)
                elif v == 6:
                    img = img.rotate(-90, expand=True)
                elif v == 8:
                    img = img.rotate(90, expand=True)
    except Exception:
        pass
    return img

from PIL import ImageDraw, ImageFont
font = ImageFont.truetype("C:/Windows/Fonts/msyh.ttc", 36)  # 微软雅黑

def add_watermark(img, text):
    draw = ImageDraw.Draw(img, "RGBA")
    w, h = img.size
    # 半透明黑底条
    draw.rectangle([(w-360, h-60), (w, h)], fill=(0, 0, 0, 120))
    draw.text((w-350, h-48), text, font=font, fill=(255, 255, 255, 230))
    return img

def make_grid(images, cols=3, thumb=360, gap=8):
    rows = (len(images) + cols - 1) // cols
    grid = Image.new("RGB", (cols*thumb + (cols+1)*gap, rows*thumb + (rows+1)*gap), (240,240,240))
    for i, im in enumerate(images):
        im = fix_orientation(im).convert("RGB")
        im.thumbnail((thumb, thumb))
        r, c = divmod(i, cols)
        x = gap + c*(thumb+gap)
        y = gap + r*(thumb+gap)
        grid.paste(im, (x, y))
    return grid

from collections import defaultdict
from datetime import datetime
groups = defaultdict(list)
for p in imgs:
    d = get_shoot_date(p)            # 读 EXIF 或 mtime
    groups[d.strftime("%Y-%m-%d")].append(p)
for day, paths in groups.items():
    day_imgs = [add_watermark(fix_orientation(Image.open(p)), f"{day} 水电") for p in paths[:9]]
    grid = make_grid(day_imgs)
    grid.save(out_dir / f"{day}_施工日记.png")