### 使用Python为图片添加按顺序排列的标题 为了实现这一目标，可以利用Pillow库来操作图像文件并为其添加文字。下面是一个完整的解决方案，该方案能够遍历指定目录中的所有图片，并依次为每一张图加上编号作为其标题。 #### 安装依赖项 首先需要安装`Pillow`库，可以通过pip命令完成安装： ```bash pip install Pillow ``` #### 编写脚本 接下来展示一段用于批量处理图片并添加序号标题的Python代码示例[^4]： ```python from PIL import Image, ImageDraw, ImageFont import os def add_title_to_image(image_path, output_folder, title_text): try: with Image.open(image_path).convert('RGBA') as img: draw = ImageDraw.Draw(img) # 设置字体样式和大小 font_size = int(min(img.size) / 20) fnt = ImageFont.truetype("arial.ttf", size=font_size) # 获取文本尺寸以便定位 text_width, text_height = draw.textsize(title_text, font=fnt) margin = 10 position = (margin, img.height - text_height - margin) # 添加半透明背景矩形以提高可读性 overlay = Image.new('RGBA', img.size, (0, 0, 0, 0)) drawing = ImageDraw.Draw(overlay) rect_x0, rect_y0 = position[0], position[1]-text_height-margin//2 rect_x1, rect_y1 = position[0]+text_width+margin*2, position[1]+text_height+margin//2 drawing.rectangle([rect_x0, rect_y0, rect_x1, rect_y1], fill=(0, 0, 0, 127)) combined = Image.alpha_composite(img, overlay) # 将标题绘制到图片上 draw = ImageDraw.Draw(combined) draw.text(position, title_text, font=fnt, fill="white") file_name = os.path.basename(image_path) save_path = os.path.join(output_folder, "titled_" + file_name) combined.convert('RGB').save(save_path) print(f"Processed {file_name} and saved to {save_path}") except Exception as e: print(f"Failed processing image at path: {image_path}. Error was: {str(e)}") if __name__ == "__main__": input_dir = "./images" output_dir = "./output_images" if not os.path.exists(output_dir): os.makedirs(output_dir) images = sorted(os.listdir(input_dir), key=lambda x:int(x.split('.')[0]) if x.split('.')[:-1].isdigit() else float('inf')) for idx, filename in enumerate(images, start=1): ext = os.path.splitext(filename)[1].lower() valid_extensions = ['.png', '.jpg', '.jpeg'] if any(ext.endswith(valid_ext) for valid_ext in valid_extensions): full_file_path = os.path.join(input_dir, filename) add_title_to_image(full_file_path, output_dir, f"Image #{idx}") print("All done!") ``` 这段程序会读取名为`input_dir`变量所指向文件夹内的所有支持格式(*.png*, *.jpg*)的图片文件，按照名称排序后逐个应用函数`add_title_to_image()`在其底部中央位置添加带有编号的文字标签，最后保存修改后的版本至另一个由`output_dir`定义的新路径下。