pip install Pillow tqdm

from PIL import Image
import os

def compress_image(input_path, output_path, quality=80):
    """
    壓縮圖片的函數(shù)

    :param input_path: 輸入圖片文件路徑
    :param output_path: 輸出圖片文件路徑
    :param quality: 圖片質(zhì)量（0-100），默認為80
    """
    try:
        # 打開輸入圖片
        with Image.open(input_path) as img:
            # 保存為輸出圖片（JPG格式），設置質(zhì)量
            img.save(output_path, "JPEG", quality=quality)
        return True
    except Exception as e:
        print(f"壓縮圖片時出錯：{e}")
        return False

# 示例用法
input_image = "input.jpg"
output_image = "output.jpg"
compress_image(input_image, output_image, quality=60)

from PIL import Image
import os
from tqdm import tqdm

def batch_compress_images(input_folder, output_folder, quality=80):
    """
    批量壓縮圖片的函數(shù)

    :param input_folder: 輸入圖片文件夾路徑
    :param output_folder: 輸出圖片文件夾路徑
    :param quality: 圖片質(zhì)量（0-100），默認為80
    """
    # 創(chuàng)建輸出文件夾
    os.makedirs(output_folder, exist_ok=True)
    
    # 獲取輸入文件夾中的所有圖片文件
    image_files = [f for f in os.listdir(input_folder) if f.endswith(('.jpg', '.jpeg', '.png', '.gif', '.bmp'))]
    
    for image_file in tqdm(image_files, desc="壓縮進度"):
        try:
            input_path = os.path.join(input_folder, image_file)
            output_path = os.path.join(output_folder, image_file)
            
            # 壓縮圖片
            compress_image(input_path, output_path, quality)
        except Exception as e:
            print(f"處理圖片 {image_file} 時出錯：{e}")

# 示例用法
input_folder = "input_images"
output_folder = "output_images"
batch_compress_images(input_folder, output_folder, quality=60)

from PIL import Image
import os
from tqdm import tqdm

def auto_compress_images(input_folder, output_folder, target_size_kb):
    """
    自動選擇壓縮質(zhì)量以達到目標文件大小的函數(shù)

    :param input_folder: 輸入圖片文件夾路徑
    :param output_folder: 輸出圖片文件夾路徑
    :param target_size_kb: 目標文件大?。↘B）
    """
    # 創(chuàng)建輸出文件夾
    os.makedirs(output_folder, exist_ok=True)
    
    # 獲取輸入文件夾中的所有圖片文件
    image_files = [f for f in os.listdir(input_folder) if f.endswith(('.jpg', '.jpeg', '.png', '.gif', '.bmp'))]
    
    for image_file in tqdm(image_files, desc="壓縮進度"):
        try:
            input_path = os.path.join(input_folder, image_file)
            output_path = os.path.join(output_folder, image_file)
            
            # 初始化質(zhì)量
            quality = 80  # 初始質(zhì)量設為80
            
            while os.path.getsize(input_path) > target_size_kb * 1024:
                # 壓縮圖片并保存到臨時文件
                temp_output_path = os.path.join(output_folder, "temp.jpg")
                compress_image(input_path, temp_output_path, quality)
                
                # 用臨時文件替換原始文件
                os.replace(temp_output_path, input_path)
                
                # 減小質(zhì)量以進一步壓縮
                quality -= 10
                if quality < 10:
                    break
        except Exception as e:
            print(f"處理圖片 {image_file} 時出錯：{e}")

# 示例用法
input_folder = "input_images"
output_folder = "output_images_auto"
target_size_kb = 100  # 目標文件大小（KB）
auto_compress_images(input_folder, output_folder, target_size_kb)