How Bendigo's Public Image Archives Ended Up Full of Duplicates, and What's Being Done About It

Bendigo's civic and cultural institutions are moving to replace thousands of duplicate digital images sitting inside public archives, a problem that accumulated over more than a decade of fragmented record-keeping and has now reached a point where continued inaction carries real costs to storage budgets and public access.

The issue is not unique to regional Victoria, but it cuts sharply here. Bendigo sits at the intersection of several large digitisation efforts, the Bendigo Art Gallery's ongoing collection digitisation, City of Greater Bendigo's heritage photographic records, and the La Trobe University Bendigo campus library's regional history holdings, that were each built on separate systems, by separate teams, with no shared deduplication standard. The result: the same image can appear under multiple file names, in multiple resolutions, tagged inconsistently and stored redundantly across platforms that were never designed to talk to each other.

A Problem With a Paper Trail

The backstory begins around 2012 and 2013, when a wave of federal and state funding pushed Australian cultural institutions to digitise physical holdings at scale. Bendigo institutions were among the recipients. The Bendigo Art Gallery, located on View Street in the CBD, received support through programs aligned with the then-federal government's cultural digitisation agenda. The La Trobe Bendigo campus, anchored on Edwards Road in Flora Hill, similarly expanded its digital repository of regional documents and photographs during that period.

The pace of digitisation outran the governance around it. Volunteers and short-term contractors scanning documents often had no mandate to check whether an image already existed in the system. Cloud storage was cheap enough that duplication carried no immediate pain. By 2018 and 2019, the problem was visible to archivists but deprioritised against more pressing cataloguing backlogs. Then came the post-2020 remote-working period, which pushed more material online faster, compounding the existing disorder.

City of Greater Bendigo's own spatial and heritage records teams have acknowledged internally, through council agenda papers that are publicly available, that image asset management is part of a broader digital infrastructure review underway across the organisation. The council's current four-year Digital Strategy, adopted in 2023, identifies data quality and deduplication as priority workstreams, though specifics on image archives are not broken out separately in the published document.

What Duplicate Replacement Actually Involves

Replacing a duplicate image is not as simple as deleting a file. Each image in a public collection may have metadata attached, a catalogue number, a rights statement, a contextual note, that took hours to create. Deleting the wrong version can strip that provenance permanently. Archivists working on the problem must typically run automated hash-matching tools to identify candidates, then review flagged pairs manually before any deletion occurs. Industry estimates from Australian digitisation practitioners suggest the review process costs between $8 and $15 per image pair when staff time is properly costed, which adds up quickly across collections that number in the tens of thousands.

At the Bendigo Regional Archive Centre on Pall Mall, staff have been working through a phased audit of photographic records relating to the goldfields era, a collection that is both historically significant and particularly susceptible to duplication given how many separate digitisation passes it has received over twenty years. The archive centre has not publicly quantified the scale of duplicates identified to date.

For community organisations, including the numerous local historical societies operating across suburbs like Kangaroo Flat and Eaglehawk, the practical advice from archivists is straightforward: before uploading new material to any shared platform, run a filename and visual similarity check against existing holdings. Free tools including Google's reverse image search and open-source software such as dupeGuru can catch obvious duplicates before they enter a system. Institutions working at scale are increasingly specifying deduplication requirements in contracts with digitisation vendors, a clause that was rarely standard before 2023.

The longer-term fix is a shared metadata standard across Bendigo's institutional collections, something archivists in the sector have been advocating for years. Whether local institutions move toward a unified system, or continue to manage their own siloed archives with better internal hygiene, will shape the integrity of the region's digital heritage record for the next generation.