How Melbourne's Public Art Archives Ended Up Riddled With Duplicate Images — And What It Cost to Fix It

Melbourne's network of public cultural institutions has spent the better part of three years quietly wrestling with a cataloguing crisis that digitisation was supposed to prevent. Thousands of duplicate images — mislabelled murals, double-entered heritage photographs, repeated scans of the same streetscape — have accumulated across shared digital repositories, complicating everything from grant applications to urban planning submissions.

The problem matters now because the Victorian Government's $237 million Creative State 2025–2028 strategy, announced in late 2024, tied new funding streams to verified, deduplicated digital asset libraries. Institutions that couldn't demonstrate clean records risked being passed over in the first allocation round, which closed in March 2026. That deadline concentrated minds in a way years of internal audits had not.

How the Backlog Built Up

The roots of the problem run back to at least 2017, when the City of Melbourne launched the Public Space Digital Archive, a joint effort with Museums Victoria and Arts Centre Melbourne on St Kilda Road. Each institution contributed scanned assets using different metadata standards. Museums Victoria tagged images by object ID. Arts Centre Melbourne used production title. The City of Melbourne used street address. No common field connected the three systems.

When a single photograph of, say, a Hosier Lane mural appeared in all three archives under different tags, automated deduplication tools failed to recognise it as the same file. Across a decade of digitisation drives, the problem compounded. By mid-2025, internal audits at Museums Victoria had flagged more than 18,000 image records as potential duplicates across the shared infrastructure, according to a process review document tabled at a Victorian Parliamentary estimates hearing in October 2025.

The State Library of Victoria on Swanston Street faced a related but distinct version of the issue. Its Pictoria digitisation program, which began scanning historical photographs of inner-city Melbourne from the 1880s onward, ran concurrent batches through two separate contracted scanning vendors between 2019 and 2022. Overlap between vendor assignments was never formally reconciled. A 2023 internal review, cited in the Library's 2022–23 annual report, found that approximately 12 per cent of images ingested during that period required manual review for duplication.

The Cost of Cleaning Up

Fixing the problem has not been cheap or fast. The City of Melbourne allocated $680,000 in its 2025–26 budget toward a dedicated digital asset remediation project, contracting Melbourne-based firm Informed365 to run deduplication workflows across council-held image libraries. The work, which began in February 2026, is expected to run through December 2026.

The methodology involves both automated hashing — a process that generates a unique fingerprint for each image file — and manual curatorial review for cases where images are similar but not identical. A mural that was photographed twice in the same week may be technically distinct but editorially redundant. Deciding which version to keep, and how to archive the discarded copy, requires a human call every time.

Smaller organisations outside the main institutional network have largely been left to sort things out independently. The Fitzroy-based Blak Dot Gallery and photographic collectives operating out of the ACCA precinct in Southbank have described the process as resource-intensive and largely unfunded at their scale.

For institutions still mid-process, the practical advice from those who have completed early stages is consistent: establish a single controlled vocabulary for metadata before ingesting any new assets, and never run parallel scanning contracts without a reconciliation protocol written into the vendor agreement from the start. The Victorian Government's Public Records Office released updated guidance on digital asset standards in April 2026, and compliance with that framework is now a condition of Creative State funding applications from the July 2026 round onward. Institutions that missed the March deadline have a second chance — but only if their deduplication work can be independently verified before the new submission window closes on September 12.