Milan Takes a Hard Look at Duplicate Images Flooding Its Digital Archives — and How It Compares to Paris, Barcelona and Tokyo

Milan's major cultural institutions and fashion houses are wrestling with a surge of duplicate digital images clogging their archives — a problem that has quietly ballooned into a six-figure annual cost for some organisations and is now drawing attention from city administrators ahead of the Milan-Cortina 2026 Winter Olympics, which is generating an unprecedented volume of promotional and documentary photography.

The issue is not new, but the scale has changed. The explosion of smartphone documentation, AI-generated visual content, and multi-platform publishing has meant that a single photograph of, say, the Galleria Vittorio Emanuele II or the Porta Nuova skyline can exist in dozens of near-identical versions across separate servers, cloud storage systems, and social media caches — each one technically distinct enough to evade basic deduplication filters, but visually redundant to any human reviewer.

What Milan's Institutions Are Actually Doing

The Fondazione Prada, which operates its sprawling campus in the former Società Anonima per l'Industria delle Fermentazioni distillery complex in the Largo Isarco area of southern Milan, began an internal audit of its digital image library in early 2025. The foundation has not published the findings publicly, but the project is understood to be part of a broader data governance initiative tied to its permanent collection documentation. The Triennale Milano, on Viale Emilio Alemagna in Parco Sempione, has similarly been modernising its digital asset management infrastructure, a process that includes tackling image redundancy generated by decades of exhibition cataloguing.

On the commercial side, the fashion and design economy along Via Montenapoleone and in the Brera Design District produces tens of thousands of product images per season. Several mid-size design studios in Brera have adopted perceptual hashing tools — software that generates a unique fingerprint for each image based on visual content rather than file metadata — to automatically flag near-duplicates before they enter the master archive. The approach cuts storage costs and speeds up retrieval for licensing teams.

Milan's municipal government has not yet launched a city-wide programme specifically targeting duplicate image management in public records, though the comune's digital transformation office has been expanding its data infrastructure under the Piano Triennale per l'Informatica nella Pubblica Amministrazione framework, which runs through 2027.

How the City Stacks Up Against Paris, Barcelona and Tokyo

The comparison with peer cities is instructive. Paris's Centre Pompidou announced in March 2026 that it had reduced its digital image archive from an estimated 2.3 million files to 1.6 million after a two-year deduplication project, cutting cloud storage costs by roughly 30 percent. That figure came directly from the institution's annual digital report published in April 2026. Barcelona's MACBA — the Museu d'Art Contemporani de Barcelona — completed a similar exercise in 2024 using open-source tools developed under a European Union Horizon-funded digital heritage initiative.

Tokyo presents a different model. Several of Japan's major cultural institutions, including the Tokyo National Museum, have integrated duplicate detection directly into their digitisation pipeline, meaning images are screened at the point of ingest rather than retrospectively. The approach is faster and cheaper over time, though it requires significant upfront investment in custom workflow software. Milan has not yet adopted ingest-level screening at any of its publicly funded institutions, based on publicly available procurement records.

The gap matters for practical reasons. With the Winter Olympics opening ceremony scheduled for February 6, 2026, and media credential requests already processed for more than 3,000 photographers and videographers, the archive infrastructure around Milan's official Games documentation is set to grow sharply. The Organising Committee's media operations are headquartered in the MiCo — Milano Convention Centre complex near Fieramilanocity — and the volume of imagery passing through those systems over the coming months will be substantial.

For institutions and businesses that haven't yet addressed the problem, digital asset management consultants recommend starting with a perceptual hash audit of existing libraries before the post-Games documentation rush hits in spring 2027. Tools including Google's open-source PDQ algorithm and commercial platforms such as Cloudinary's AI duplicate detection can be deployed without replacing existing archive infrastructure. The window for a low-disruption cleanup, archivists and technology advisers generally agree, is now — before the filing cabinets, digital or otherwise, get any fuller.