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Barcelona's Approach to Duplicate Image Replacement: A Global Comparison

The city's handling of duplicate image replacement is being closely watched by other major cities around the world, with some adopting similar strategies and others taking a different approach.

By Barcelona News Desk · Published 4 July 2026, 8:44 pm

2 min read

Barcelona's Approach to Duplicate Image Replacement: A Global Comparison
Photo: Photo by Zak Mir on Pexels
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Barcelona is taking a unique approach to duplicate image replacement, with a focus on using artificial intelligence to identify and remove duplicate images from its digital archives. This approach is being closely watched by other major cities around the world, including Paris and New York, which are also grappling with the issue of duplicate image replacement.

The issue of duplicate image replacement has become increasingly important in recent years, as cities around the world have begun to digitize their archives and make them available online. This has created a number of challenges, including the need to identify and remove duplicate images, which can be time-consuming and costly. In Barcelona, the city's archives contain over 1 million images, many of which are duplicates. The city's approach to duplicate image replacement is being driven by the need to make its archives more efficient and cost-effective.

In Barcelona, the city's approach to duplicate image replacement is being led by the Barcelona City Council's Archives and Records Department, which is working with a number of local organizations, including the University of Barcelona and the Catalan Institute of Technology. The department is using a combination of artificial intelligence and machine learning algorithms to identify and remove duplicate images from the city's archives. This approach is being tested at a number of locations around the city, including the Archives and Records Department's headquarters on Carrer de l'Hospital, and the University of Barcelona's campus on Gran Via de les Corts Catalanes.

Local Initiatives and Global Comparisons

According to data from the Barcelona City Council, the city's archives contain over 1.2 million images, of which around 20% are duplicates. The city's approach to duplicate image replacement is expected to save around €100,000 per year, which will be reinvested in the city's archives and cultural institutions. In comparison, the city of Paris is taking a more manual approach to duplicate image replacement, with a team of archivists working to identify and remove duplicates from the city's archives. The city of New York, on the other hand, is using a combination of artificial intelligence and crowdsourcing to identify and remove duplicates from its archives.

The city's approach to duplicate image replacement is also being supported by a number of local initiatives, including the Barcelona Open Data initiative, which is making the city's archives and data available online for free. This initiative is being led by the Barcelona City Council's Department of Technology and Digital Innovation, and is expected to make it easier for residents and visitors to access the city's archives and cultural institutions. As the city continues to develop its approach to duplicate image replacement, it will be closely watched by other major cities around the world, which are also grappling with the challenges of digitization and archive management.

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