Oloneo PhotoEngine is a popular digital image editing software application developed by

Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), ma ...

-based Oloneo SAS. The application produces high-dynamic-range images and tone mapped images by programatically combining standard-dynamic range images of different exposures. PhotoEngine supports 96-bit per pixel HDR image files in RAW and TIFF formats. The software, developed by Oloneo's president Antoine Clappier, was first beta released in July 2010.

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* HDR tone mapping software {{graphics-software-stub