GeoPhoto

GeoPhoto is an application for viewing photographs with geolocation information on an interactive map. The program processes the EXIF metadata of images and displays their exact capture location. Users can organize their photo collections through cartographic representation. The tool supports multiple file formats and storage systems.

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• Map visualization. GeoPhoto displays all geolocated photographs on an interactive world map. Each image is shown as a marker at the coordinates where it was captured, allowing spatial navigation through the photo collection.
• Multi-format support. The application is compatible with JPG, HEIC, MP4, and other multimedia formats containing EXIF metadata. The software processes the geolocation information embedded in the files to determine their geographic position.
• Geographic slideshow. GeoPhoto includes a presentation mode that shows photographs alongside their capture location. The display alternates between the image and its position on the map, providing geographical context during playback.
• Geographic metadata editing. Users can add GPS coordinates to photographs that lack geotags or modify existing ones. Editing is done by direct selection on the map or manual entry of coordinates.
• Automatic clustering. The software automatically groups photographs based on geographic and temporal proximity. This feature organizes large collections into manageable sets according to location and capture date.
• Cloud storage integration. GeoPhoto connects with cloud storage services like OneDrive, allowing users to view remotely stored photographs directly on the map without needing to download them locally.
• Extended EXIF information. The application displays complete technical data extracted from EXIF metadata, including camera settings, exposure parameters, and capture device information.
• Advanced filtering system. Users can filter photographs by time period, geographic location, camera type, or specific technical parameters. The filters allow finding specific images in large collections.
• Geographic data export. GeoPhoto allows exporting photo locations in KML and GPX formats for use in other mapping applications or navigation systems.
• Dual view mode. The interface simultaneously displays the map with locations and photo thumbnails, synchronizing selection between both panels for efficient navigation.
• Coordinate search. Includes direct search functionality using specific GPS coordinates, allowing users to locate photographs captured in particular geographic areas.
• Map layer system. Offers multiple base map layers, including satellite, cartographic, and hybrid variants, adapting to different viewing preferences.

GeoPhoto was developed by Timo Partl as a personal project to address the need for visualizing geolocated photo collections. Development began in 2018 using modern web technologies. The application is built primarily with JavaScript, employing frameworks and libraries such as React for the user interface and Leaflet for map visualization. EXIF metadata processing is implemented using specialized libraries for image data analysis. Compatibility with HEIC formats required implementing specific parsers to handle the modern image format. Support for cloud integration was added in later versions through storage service APIs.

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