Remove image from cache when it is deleted in folder

Question

I have folder with a lot of pictures. I want to resize this images and push them to cache so if someone wants to use them again they will be in cache. I achieve this with this nginx setup:

    server {
      server_name localhost;
      listen 8888;
      root /media;
      location ~ "^\/(?<gallery_id>.+)\/(?<width>\d+)\/(?<height>\d+)\/(?<image>.+)$" {
        root /media;
        try_files /$gallery_id/$image =404;
        image_filter resize $width $height;
        image_filter_buffer 100M;
      }
    }

    proxy_cache_path /media-cache/images-cache/ levels=1:2 keys_zone=media-cache:1m inactive=365d max_size=500m;

    server {
      server_name localhost;
      listen 80;
      location ~ "^/(?<gallery_id>.+)/(?<width>(160))/(?<height>(120))/(?<image>.+)$" {
        proxy_pass http://localhost:8888;
        proxy_cache media-cache;
        proxy_cache_valid 200 365d;
        proxy_cache_key $width-$height-$image;
      }

Now when I delete a picture from gallery this picture is still in a cache.

How can I achieve that when picture is deleted from gallery, also cache is deleted for that image?