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| import os
from PIL import Image
def get_resolution_input(prompt):
"""获取用户输入的分辨率，格式为'宽 高'"""
while True:
try:
res_input = input(prompt).strip()
width, height = map(int, res_input.split())
if width <= 0 or height <= 0:
print("分辨率必须为正整数，请重新输入")
continue
return width, height
except ValueError:
print("输入格式错误，请按'宽 高'格式输入（例如：480 640）")
def needs_resize(img, max_width, max_height):
"""检查图片是否需要调整大小"""
return img.width > max_width or img.height > max_height
def process_images(input_folder, output_folder, max_width, max_height, copy_untouched):
"""处理图片主函数"""
os.makedirs(output_folder, exist_ok=True)
failed_files = []
processed_count = 0
copied_count = 0
skipped_count = 0
for root, _, files in os.walk(input_folder):
for file in files:
if not file.lower().endswith(('.png', '.jpg', '.jpeg', '.bmp', '.gif', '.webp')):
continue
input_path = os.path.join(root, file)
rel_path = os.path.relpath(root, input_folder)
output_dir = os.path.join(output_folder, rel_path)
output_path = os.path.join(output_dir, file)
try:
with Image.open(input_path) as img:
if needs_resize(img, max_width, max_height):
ratio = min(max_width / img.width, max_height / img.height)
new_size = (int(img.width * ratio), int(img.height * ratio))
resized_img = img.resize(new_size, Image.LANCZOS)
os.makedirs(output_dir, exist_ok=True)
resized_img.save(output_path)
processed_count += 1
print(f"[处理] {input_path} -> {output_path}")
elif copy_untouched:
os.makedirs(output_dir, exist_ok=True)
img.save(output_path)
copied_count += 1
print(f"[复制] {input_path} -> {output_path}")
else:
skipped_count += 1
print(f"[跳过] {input_path} (无需调整)")
except Exception as e:
failed_files.append(input_path)
print(f"[失败] {input_path} - 错误: {str(e)}")
print("\n=== 处理结果 ===")
print(f"目标分辨率: {max_width}×{max_height}")
print(f"已处理图片数量: {processed_count}")
if copy_untouched:
print(f"已复制未处理图片数量: {copied_count}")
print(f"跳过图片数量: {skipped_count}")
print(f"失败图片数量: {len(failed_files)}")
if failed_files:
print("\n=== 处理失败的图片 ===")
for i, file in enumerate(failed_files, 1):
print(f"{i}. {file}")
if __name__ == "__main__":
print("=== 图片批量处理工具 ===")
print("功能说明:")
print("1. 将大于指定分辨率的图片调整为不超过该尺寸")
print("2. 可选择是否复制未处理的照片到新文件夹")
print("3. 保持原始目录结构\n")
input_folder = input("请输入源文件夹路径: ").strip()
output_folder = input("请输入目标文件夹路径: ").strip()
max_width, max_height = get_resolution_input("请输入目标分辨率(格式: 宽 高，例如480 640): ")
copy_choice = input("是否需要将未处理的照片一并复制到新文件夹? (y/n): ").strip().lower()
if not os.path.exists(input_folder):
print("错误: 源文件夹不存在!")
else:
try:
process_images(
input_folder=input_folder,
output_folder=output_folder,
max_width=max_width,
max_height=max_height,
copy_untouched=copy_choice == 'y'
)
except KeyboardInterrupt:
print("\n操作已取消")
except Exception as e:
print(f"发生错误: {str(e)}")
finally:
input("\n按Enter键退出...")
|
