1
from PIL
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import Image
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import os
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# 检查图片方向
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def get_image_orientation(image_path):
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    with Image.open(image_path) as img:
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        width, height = img.size
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        return "landscape" if width > height else "portrait"
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# 转换图片为 WebP 格式
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def convert_to_webp(image_path, output_folder):
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    with Image.open(image_path) as img:
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        output_path = os.path.join(output_folder, os.path.splitext(os.path.basename(image_path))[0] + ".webp")
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        img.save(output_path, "webp")
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# 遍历文件夹中的图片
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def process_images(input_folder, output_folder_landscape, output_folder_portrait):
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    for filename in os.listdir(input_folder):
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        if filename.endswith(('.jpg', '.jpeg', '.png')):
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            image_path = os.path.join(input_folder, filename)
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            orientation = get_image_orientation(image_path)
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            if orientation == "landscape":
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                convert_to_webp(image_path, output_folder_landscape)
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            else:
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                convert_to_webp(image_path, output_folder_portrait)
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# 指定输入和输出文件夹
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input_folder = "/root/data/alist/local/photos"
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output_folder_landscape = "/root/data/alist/local/landscape"
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output_folder_portrait = "/root/data/alist/local/portrait"
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# 执行转换
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process_images(input_folder, output_folder_landscape, output_folder_portrait)

1
<?php
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// 设置站点地址
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$weburl = 'https://api.zzii.de/';
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$pcPath = 'landscape';
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$mobilePath = 'portrait';
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// 函数：从目录中获取图片列表
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function getImagesFromDir($path) {
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    $images = array();
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    if ($img_dir = @opendir($path)) {
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        while (false !== ($img_file = readdir($img_dir))) {
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            if (preg_match("/(\.webp)$/", $img_file)) { // 仅匹配 WebP 格式的图片
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                $images[] = $img_file;
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            }
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        }
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        closedir($img_dir);
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    }
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    return $images;
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}
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// 检测用户代理以区分手机和电脑访问
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$userAgent = $_SERVER['HTTP_USER_AGENT'];
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$isMobile = preg_match('/(android|iphone|ipad|ipod|blackberry|windows phone)/i', $userAgent);
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// 根据访问设备设置图片路径
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if ($isMobile) {
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    $path = $mobilePath;
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} else {
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    $path = $pcPath;
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}
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// 缓存图片列表
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$imgList = getImagesFromDir($path);
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// 从列表中随机选择一张图片
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shuffle($imgList);
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$img = reset($imgList);
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// 直接输出所选的随机图片
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$img_path = $path . '/' . $img;
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$img_url = $weburl . $img_path;
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header('Content-Type: image/webp'); // 设置 Content-Type 为 image/webp
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readfile($img_path);
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?>