ftp.ntua.gr:/mirror/slackware/slackware64/source/l/opencv/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[TXT] slack-desc                                       28-Nov-2020 02:31  743   
[   ] opencv_contrib-4.5.5.tar.lz                      25-Dec-2021 01:01   52M  
[   ] opencv.url                                       29-Sep-2020 03:36   74   
[TXT] opencv.SlackBuild                                03-Apr-2021 21:03  4.7K  
[   ] opencv-4.5.5.tar.lz                              25-Dec-2021 05:53   75M
Apache/2.2 Server at ftp.ntua.gr Port 80