图片压缩代码

以下是一段python 代码，可以用来将特定文件夹内的图片压缩成webp 格式

使用前请确保安装过os和PIL包

import os
from PIL import Image

# 手动指定参数和路径
INPUT_FOLDER = "."  # 图片所在的文件夹路径，当前目录用"."表示
QUALITY_LEVEL = 80  # WebP 压缩质量 (1-100, 数值越高质量越好)


def compress_to_webp(input_folder, quality=80):
    """
    Compresses all images in the input folder to WebP format and removes the original files.
    
    Args:
        input_folder (str): Path to the folder containing images to compress
        quality (int): Quality level for WebP compression (1-100, higher is better quality)
    """
    # Supported image formats
    supported_formats = ('.jpg', '.jpeg', '.png', '.bmp', '.tiff', '.tif', '.gif')
    
    # Get all image files in the folder
    image_files = []
    for filename in os.listdir(input_folder):
        if filename.lower().endswith(supported_formats):
            image_files.append(filename)
    
    print(f"Found {len(image_files)} images to convert...")
    
    for filename in image_files:
        input_path = os.path.join(input_folder, filename)
        
        # Create output path with .webp extension
        base_name = os.path.splitext(filename)[0]
        output_path = os.path.join(input_folder, f"{base_name}.webp")
        
        try:
            # Open and compress the image
            with Image.open(input_path) as img:
                # Convert RGBA to RGB if necessary (for compatibility)
                if img.mode in ("RGBA", "P"):
                    img = img.convert("RGB")
                
                # Save as WebP with specified quality
                img.save(output_path, "WEBP", quality=quality, optimize=True)
                
                # Remove the original file after successful conversion
                os.remove(input_path)
                
                print(f"Compressed and converted: {filename} -> {base_name}.webp")
        
        except Exception as e:
            print(f"Error processing {filename}: {str(e)}")
    
    print("Compression completed!")


def main():
    # 检查指定的文件夹是否存在
    if not os.path.isdir(INPUT_FOLDER):
        print(f"Error: {INPUT_FOLDER} is not a valid directory")
        return
    
    compress_to_webp(INPUT_FOLDER, QUALITY_LEVEL)


if __name__ == "__main__":
    main()