Milan Moves to Purge Duplicate Images From Its Digital Public Record — and Other Cities Are Watching

Milan's municipal digital archive contains tens of thousands of photographs — and a growing portion of them are duplicates, near-identical images filed multiple times across overlapping city databases, tourism portals, and Olympic infrastructure planning systems. The Comune di Milano's digital services directorate acknowledged the scale of the problem in a June 2026 internal review, which found that roughly one in five images submitted to the city's public-facing media library since 2021 was a copy or near-copy of an existing file. No figures have been released publicly, but the review prompted an accelerated procurement process for automated deduplication software that is now underway.

The timing is not accidental. With Milan-Cortina 2026 Winter Olympics events scheduled to begin in February, the city is under pressure to present a coherent, accurate visual identity across official channels. Sponsors, broadcasters, and international press outlets pull images directly from municipal and regional repositories. Duplicate or mislabelled photographs — a recurring issue since the Porta Nuova district redevelopment generated an enormous volume of construction and event imagery after 2012 — create confusion about what is current, what is archived, and what has been staged for promotional purposes.

What Milan Is Actually Doing About It

The Comune di Milano has been piloting a deduplication tool through its partnership with the Politecnico di Milano's Design department, which has an established working relationship with the city on urban visualisation projects. The pilot, running since March 2026, targets image libraries held by three city departments: urban planning, tourism promotion, and the Milan-Cortina 2026 local organising unit based on Via Pirelli. Early results from the pilot, shared at a May conference on public digital infrastructure in the Bovisa district, indicated the tool reduced redundant files by around 34 percent in a controlled test archive of 12,000 images.

The fashion and design economy gives Milan a particular reason to take image hygiene seriously. The city's reputation as a global visual authority — built through decades of Salone del Mobile, Milano Moda Donna, and the dense concentration of creative agencies between Brera and Isola — means that outdated or duplicated images circulating in official channels carry real commercial consequences. An old render of a Porta Nuova tower filed twice under different metadata tags, for instance, can appear as current when a journalist or foreign investor pulls from the city database.

How Milan Compares to Paris, Amsterdam, and Tokyo

Other cities with similarly large public image repositories have been grappling with the same problem, and their approaches vary sharply. Paris's Direction de l'Information et de la Communication de la Ville de Paris began a structured deduplication programme in 2023, reportedly reducing its central media library from 480,000 images to under 310,000 after removing duplicates and deprecated files — a reduction of more than 35 percent, according to a 2024 report published by the city's digital transformation office. Amsterdam's municipal archive, the Stadsarchief Amsterdam, has operated a continuous deduplication protocol since 2019, integrated directly into its public submission portal. Tokyo, hosting a volume of imagery comparable to Milan ahead of the 2021 Games, deployed AI-assisted image comparison tools developed by Fujitsu in the six months before its Olympic opening.

Milan's current approach sits somewhere between Amsterdam's routine-maintenance model and the emergency-clearing exercise Tokyo undertook. The Politecnico pilot is promising, but it remains confined to three departments. The city's broader digital estate — which includes independent portals run by Camera Nazionale della Moda Italiana, the Triennale di Milano, and individual municipio offices — is not yet covered by any unified deduplication standard.

The practical consequence for anyone submitting images to city channels, or drawing from them, is straightforward: check the file date and the metadata source before publishing or licensing. The Comune's media office advises journalists and commercial users to request images directly through its updated portal, milanodigitale.it, which as of June 30 carries a new version flag indicating which files have passed the pilot deduplication review. Files flagged with the green "D-verified" tag have been checked; the rest have not. The full rollout across all city departments is targeted for November 2026 — three months before the Olympic torch arrives.