Hong Kong's War on Duplicate Images: What Officials, Experts and Key Figures Are Saying

Hong Kong's digital governance community is rallying around a problem that sounds mundane but carries real costs: duplicate images clogging public databases, slowing e-government services, and creating compliance headaches for financial institutions along Des Voeux Road Central. The Office of the Government Chief Information Officer flagged duplicate image management as a priority area in its 2025-2026 digital infrastructure review, citing storage inefficiencies across multiple bureau systems.

The timing is not accidental. Hong Kong is positioning itself as the Greater Bay Area's primary data-services hub, and that pitch becomes harder to make when core infrastructure carries the kind of redundancy that pushes cloud storage costs upward and complicates cross-border data-sharing agreements with Shenzhen and Guangzhou counterparts. With Singapore aggressively marketing its Smart Nation credentials to the same pool of multinational clients, efficiency gaps matter.

What the Experts Are Flagging

Technology professionals at Cyberport, the government-backed tech campus in Pok Fu Lam, have pointed to perceptual hashing and AI-assisted deduplication as the most practical near-term tools for large image libraries. The technology works by generating a compact fingerprint for each image file; near-identical pictures — even those resized or slightly recoloured — return matching hashes and get flagged for human review or automated replacement. Several Cyberport-resident startups have been developing localised versions of these tools tuned to Traditional Chinese document imagery, which presents recognition challenges that generic Western-built software handles poorly.

The Hong Kong Applied Science and Technology Research Institute, based in Sha Tin, has been conducting internal benchmarking of deduplication tools since at least early 2025. Engineers there have noted that false-positive rates — instances where the software wrongly identifies two different images as duplicates — remain the central technical challenge, particularly in medical imaging archives and land registry records held at the Lands Registry office in Queensway.

On the commercial side, operators of e-commerce platforms concentrated in Kwun Tong's industrial-to-tech conversion buildings say duplicate product images inflate catalogue sizes, slow page-load times, and occasionally expose retailers to intellectual property disputes when the same stock photograph appears under multiple vendor listings. One recurring scenario involves logistics firms using the same packaging photograph submitted by different suppliers in the same tender batch — a compliance problem that procurement officers at the Trade and Industry Department have had to address manually.

Regulatory and Practical Pressure Points

Hong Kong's Personal Data Privacy Ordinance, last substantively amended in 2021, does not specifically address duplicate image data, but the Office of the Privacy Commissioner for Personal Data has been asked to consider whether repeated storage of the same biometric or facial image constitutes unnecessary data retention — a category the ordinance already penalises. Legal professionals in the city's financial district have noted that clarity on this point would help banks and insurance companies operating out of International Finance Centre and Exchange Square audit their customer onboarding image archives more confidently.

The practical numbers are not trivial. Industry estimates — treated cautiously given the lack of a single authoritative audit — suggest that large enterprise image libraries in Hong Kong commonly carry duplication rates of between 15 and 30 percent by file count, meaning roughly one in five stored images may be a redundant copy. Cloud storage pricing in Hong Kong data centres, while competitive with regional peers, still runs at a premium compared to Mainland facilities, making that redundancy a direct line item on IT budgets.

For organisations looking to act now, technology consultants advise a phased approach: run a read-only deduplication scan first to understand the scale of the problem before any replacement or deletion takes place, particularly for records that may carry legal hold obligations. The Hong Kong Monetary Authority's guidance on record retention — relevant to any licensed bank or insurer — sets minimum preservation periods that must be cross-referenced before any automated cleanup tool is allowed to overwrite or discard image files. Getting that sequencing right, practitioners say, is the difference between a clean audit trail and a regulatory conversation nobody wants to have.