Canberra's Duplicate Image Problem: How the Capital Stacks Up Against Cities Fighting the Same Digital Clutter

Canberra's land of duplicate images — the thousands of near-identical photographs clogging shared drives, content management systems, and public-facing websites across ACT government agencies — is getting a formal clean-up, and the methods being used here are catching attention from city administrations as far away as Wellington and Amsterdam.

The ACT Government's Digital, Data and Technology Solutions directorate flagged the issue formally in its 2025–26 annual operational plan, identifying duplicate and redundant digital assets as a growing drag on storage costs, search efficiency, and public accessibility compliance. The problem is not cosmetic. Across the directorate's shared platforms, redundant image files were consuming an estimated fraction of storage budgets that, when scaled across all agency systems, adds up to real money in a jurisdiction where ICT expenditure runs into the hundreds of millions of dollars annually.

The timing matters. Australia's federal government, headquartered here in Canberra, is mid-way through a broader digital uplift push tied to the Data and Digital Government Strategy released in 2023. The ACT, hosting a public service workforce that leans heavily on shared digital infrastructure, sits at the intersection of federal and territory obligations. Duplication in imagery — often generated when staff upload versions of the same photograph from different devices, or when legacy migration projects copy rather than consolidate files — compounds across agencies that share platforms but not always governance frameworks.

What Canberra Is Actually Doing

The Australian National University's 3A Institute at the Acton campus has been involved in adjacent work on automated asset classification, while the University of Canberra's Centre for Creative and Cultural Research in Bruce has examined metadata standards for public digital collections. Neither institution was asked to comment for this article, but their published research informs the broader policy environment the directorate is working within.

On the operational side, the ACT Government has been rolling out a consolidated digital asset management system across agencies including Transport Canberra, Access Canberra, and the Suburban Land Agency. The Suburban Land Agency, which manages land release across growth corridors including Gungahlin and Molonglo Valley, generates particularly high volumes of site photography — aerials, progress shots, promotional images — that historically have been filed with inconsistent naming conventions, making deduplication manual and time-consuming.

The approach being tested in Canberra uses perceptual hashing — a technique that creates a compact fingerprint for each image and flags files that are visually near-identical even if their file names or metadata differ. Similar tools have been deployed by Amsterdam's city digital team since 2023, and Wellington's Te Tari Taiwhenua Department of Internal Affairs adopted a comparable framework in mid-2024 as part of a whole-of-government cloud migration.

How Canberra Compares

The comparison with Wellington is instructive. Wellington's public service is roughly similar in scale to Canberra's, with both cities functioning as national capitals whose digital workforces grew rapidly during the pandemic-era shift to remote work. Wellington completed an initial deduplication sweep across core ministry systems within eight months of deploying its hashing tool, reducing redundant image files by an estimated 34 percent according to published figures from the New Zealand Government Chief Digital Officer's office.

Amsterdam went further, integrating deduplication into its upload pipeline so that staff are warned in real time before a duplicate is saved. Canberra has not yet reached that stage. The current phase here is retrospective — clearing existing backlogs — rather than preventive.

Storage costs in ACT Government cloud environments, under whole-of-government Microsoft Azure agreements, run broadly in line with standard enterprise pricing, where high-resolution image files can individually run to several megabytes. Multiply that by tens of thousands of duplicates and the arithmetic becomes meaningful inside a constrained territory budget.

For public servants at workstations from Barton to Belconnen, the practical upshot is likely a period of prompted reviews — systems flagging files for confirmation before archiving. Agencies have been told to expect the first retrospective pass to complete before the end of the 2026 calendar year. Whether the preventive pipeline Amsterdam uses arrives in Canberra after that depends on the results of the current phase and a budget process that, like most things in this city, will be shaped by what happens on Capital Hill first.