Melbourne's Duplicate Image Problem: What Happens Next and the Key Decisions Ahead

Melbourne's public institutions are sitting on a digital mess years in the making. Libraries, councils and heritage bodies across Victoria are wrestling with duplicate image records embedded in their collections management systems — a problem that has ballooned as digitisation programs accelerated after 2020 and staff turnover left inconsistent cataloguing standards in their wake.

The issue matters now because the Victorian Government's Digital Asset Policy, which came into effect in January 2026, requires all state-funded bodies to maintain audit-ready image registries by December 31 this year. That deadline is forcing decisions that institutions have quietly deferred for years: which duplicates get deleted, which get merged, and who bears the legal and archival responsibility when an image has been catalogued under two different rights statuses.

The Stakes on the Ground

State Library Victoria on La Trobe Street is among the institutions working through a structured deduplication review of its digitised photograph collection, which spans well over a million items. The challenge is not simply finding two copies of the same file. Often, the duplicates carry different metadata — different attribution, different copyright flags, different access permissions — meaning a merge requires a human decision, not just an automated script. A single mislabelled image of, say, a 1960s housing commission tower in Fitzroy could affect researchers, publishers and legal claimants simultaneously.

The City of Melbourne's Open Data platform, which hosts thousands of publicly licensed photographs of streetscapes from the CBD to Docklands, has flagged a similar audit requirement under the council's own Digital Governance Framework adopted in March 2026. Council staff have until September 30 to complete a reconciliation of images uploaded between 2018 and 2023 — a period when multiple departments uploaded files independently without a central registry.

For smaller organisations the problem is sharper still. Community arts bodies in Collingwood and Footscray that received Creative Victoria digitisation grants during the pandemic years often lack a dedicated archivist. Many ended up with duplicate scans of the same physical print, uploaded at different resolutions and under different licences, spread across Google Drive, their website CMS and whatever collections platform their grant required them to use.

The Decisions That Cannot Wait

Three questions are now sitting on the desks of digital managers and board members at institutions across the city. First, who has authority to delete a record — and does deletion require board sign-off or can it be delegated to a collections manager? Second, when two duplicate records carry conflicting rights information, which version survives and what happens to content already published under the now-superseded entry? Third, does the institution notify rights holders or depicted individuals before merging or removing records?

The Victorian Public Record Office issued updated guidance in May 2026 clarifying that deletion of a duplicate does not itself constitute disposal of a public record, provided the surviving version is complete and properly documented. That ruling has given some institutions the legal cover they needed to proceed. Others are still waiting for their legal teams to clear internal policy before any deletions occur.

Technology is part of the answer. Perceptual hashing tools — software that generates a fingerprint for each image and flags visually identical files even when they have different filenames or formats — can reduce manual review time significantly. The question is whether institutions have the budget and the trained staff to run them properly. A basic deduplication project for a collection of 50,000 images typically runs to several months of part-time specialist work, a cost that sits uncomfortably against stretched cultural sector budgets in the current funding environment.

The December 2026 deadline under the Digital Asset Policy will arrive faster than most institutions expect. The practical path forward involves four steps: commission an automated scan to identify candidate duplicates, assign a human reviewer with archival authority to adjudicate conflicts, document every decision with a timestamped audit trail, and update the public-facing catalogue to reflect the cleaned record. Institutions that start this process in July still have time to reach the finish line. Those that wait until spring almost certainly do not.