Cairns Regional Council confirmed this week it is moving forward with a formal duplicate image replacement program across its digital asset management system — a decision that caps nearly four years of internal reviews, failed patch-up jobs and mounting complaints from departments ranging from tourism promotion to infrastructure planning.
The timing matters. Council's communications and economic development teams have been drawing heavily on digital image libraries since the 2022 relaunch of the Cairns Is Calling destination marketing campaign, which was coordinated through Tourism Tropical North Queensland's Spence Street office. As those teams scaled up their output, the problems inside the archive became impossible to ignore: duplicate files consuming server space, outdated aerials of the Esplanade mixed in with current drone footage, and heritage photos from the Cairns Historical Society mislabelled or filed in triplicate.
How the Archive Got This Cluttered
The root of the problem runs back to at least 2019, when Council migrated from an older file-server system to a cloud-based digital asset management platform. The migration was rushed — a common story in local government — and no deduplication audit was completed before staff began uploading new material. By the time the council's Corporate Services directorate commissioned an internal review in late 2023, the archive held an estimated 340,000 image files, with preliminary checks suggesting somewhere between 25 and 40 per cent involved some form of duplication: exact copies, near-identical crops, or multiple exports of the same original photograph at different resolutions.
Complicating the cleanup was the sheer diversity of contributors. The library had received uploads from Council's own communications team on Spence Street, from contractors hired during the 2021 Cairns Convention Centre refurbishment documentation project, and from partner organisations including James Cook University's Cairns campus on McLeod Street, whose researchers had shared reef and rainforest imagery under a memorandum of understanding. Each group used different naming conventions. Almost none used consistent metadata tagging.
Staff turnover made it worse. Between 2020 and 2025, the Council communications unit saw four different managers in the role responsible for digital asset governance. Institutional knowledge about what had been ingested, and why, walked out the door each time.
What the Replacement Program Actually Involves
The duplicate image replacement program is not simply about deleting redundant files. Council's approach, as outlined in agenda documents tabled at the June 17 ordinary meeting, involves three phases: automated detection using perceptual hashing software to flag likely duplicates, manual review by staff to determine which version of a duplicated image carries the best metadata and highest resolution, and then systematic replacement of inferior copies with a canonical master file linked across all internal databases.
The Cairns Airport Authority and the Reef and Rainforest Research Centre on Sheridan Street are among the external partners whose contributed imagery will be subject to the review, given their files are embedded in Council's public-facing content management systems.
The program carries a budget line of $148,000 in the 2025–26 financial year, according to the June 17 agenda documents — a figure that includes software licensing, contractor hours for the manual review phase, and staff training. It is scheduled to run through to March 2027.
For local businesses and community organisations that regularly request images from Council's library — a common practice among groups organising events along the Cairns Esplanade or applying for tourism grants — the practical upshot should be a more reliable and searchable archive. Files with accurate geotags and correct attribution will be easier to find, and the risk of a decades-old photo of Trinity Inlet being served up as current infrastructure imagery should drop considerably.
Council has indicated it will open a short public consultation period in August for any community groups holding existing image-sharing agreements, giving them a window to flag files they believe have been mislabelled or incorrectly attributed before the automated detection phase begins in September.
