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Is there any way to save storage on similar images?
(lemmy.pe1uca.dev)
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this post was submitted on 05 Sep 2024
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I believe this is what some compression algorithms do if you were to compress the similar photos into a single archive. It sounds like that's what you want (e.g. archive each day), for immich to cache the thumbnails, and only decompress them if you view the full resolution. Maybe test some algorithms like zstd against a group of similar photos vs individually?
FYI file system deduplication works based on file content hash. Only exact 1:1 binary content duplicates share the same hash.
Also, modern image and video encoding algorithms are already the most heavily optimized that computer scientists can currently achieve with consumer hardware, which is why compressing a jpg or mp4 offers negligible savings, and sometimes even increases the file size.