Created
September 1, 2025 01:28
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2 寸照片排版(4R 照相纸)
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| # uv add pillow | |
| from PIL import Image, ImageOps | |
| # 打开原图 | |
| input_path = "/path/to/input/image.jpg" | |
| img = Image.open(input_path) | |
| # 2寸照片尺寸：3.5cm x 5.3cm -> 换算像素 (300 dpi = 118.11 px/cm) | |
| cm_to_px = lambda cm: int(cm * 118.11) | |
| target_size = (cm_to_px(3.5), cm_to_px(5.3)) # 约 413 x 626 px | |
| # 调整尺寸 | |
| photo = ImageOps.fit(img, target_size, Image.Resampling.LANCZOS) | |
| # 添加1像素黑色相框 | |
| bordered_photo = ImageOps.expand(photo, border=1, fill="black") | |
| # 4R 照片纸：10.2 x 15.2 cm -> 换算像素 | |
| paper_size = (cm_to_px(10.2), cm_to_px(15.2)) # 约 1205 x 1795 px | |
| paper = Image.new("RGB", paper_size, "white") | |
| # 计算每行每列能放几张 | |
| pw, ph = paper_size | |
| fw, fh = bordered_photo.size | |
| cols = pw // (fw + 20) # 水平间距20px | |
| rows = ph // (fh + 20) # 垂直间距20px | |
| x_margin = (pw - cols * fw - (cols - 1) * 20) // 2 | |
| y_margin = (ph - rows * fh - (rows - 1) * 20) // 2 | |
| # 排版照片 | |
| for r in range(rows): | |
| for c in range(cols): | |
| x = x_margin + c * (fw + 20) | |
| y = y_margin + r * (fh + 20) | |
| paper.paste(bordered_photo, (x, y)) | |
| # 保存输出 | |
| output_path = "/path/to/output/image.jpg" | |
| paper.save(output_path, "JPEG") | |
| output_path |
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