ttrss-perceptual-image-hash

This plugin filters duplicate images using perceptual image hashing.

• Hashing library: https://github.com/jenssegers/imagehash
• Count bits extension for PostgreSQL: https://github.com/sldab/count-bits

Installation

1. Git clone to plugins.local/af_img_phash
2. Enable in feed editor for specific feeds (after enabling the plugin)

If you can't use count bits on PostgreSQL, you can do the following:

1. Install the SQL function in sql/bitcount_funcdef_pgsql.sql

2. Add the following option to config.php:

   	define('IMG_HASH_SQL_FUNCTION', true);
   

Note that using native SQL hashing function would be several orders of magnitude slower than count bits which may affect overal tt-rss performance.