Usage of Pixels XML element will become legacy at some point.

[philipmac]

Source: http://www.openmicroscopy.org/Schemas/Documentation/Generated/OME-2016-06/ome.html
Given this is required, but set to be removed this might be quite far in the future - still might be useful to note however.

 Pixels is going to be removed in the future, but it is still required.

        This is just notice that the contents of Pixels will be
        moved up to Image in a future release. This is because there
        has only been 1 Pixels object in each Image for some time.
        The concept of multiple Pixels sets for one Image failed to
        take off. It is therefore redundant.

        The Image will be unreadable if any of the required Pixel attributes are missing.

        The Pixels themselves can be stored within the OME-XML compressed by plane, and encoded
        in Base64.
        Or the Pixels may be stored in TIFF format.

Code: https://github.com/niaid/tomojs-pytools/pull/65/files#diff-296186ce9db389fa6d7da54343f2eb8b97b6831d5feab3f32bc313ca4398ebe9R37