From the OME Blog:
Nature Research journal Scientific Data is a peer-reviewed, open-access journal for descriptions of scientifically valuable datasets, and research that advances the sharing and reuse of scientific data. These data descriptors provide a path for publishing datasets associated with scientific publications.
Scientific Data requires that all datasets related to a data descriptor, including experimental, computational and curated data, should be submitted to an appropriate open, public community repository. Although Scientific Datamandates the release of the datasets that accompany their manuscripts, they do not themselves host data. Instead, they encourage submission of data to community-recognized data repositories where possible.
See Also: List of All Springer Nature Recommended Data Repositories
Note: The list NOW includes an image repositories section.