Add a boolean parameter to keep all dicom tags at loading

[ryder-cobean-nih]

We use this library as part of a solution for auto-conversion to grayscale for batch data quality, and its failsafe means to open dicoms in edge case scenarios is very useful. For my purposes, I had to fork and hastily adjust the read_dcm module, to not remove metadata fields. might it be possible to add a boolean to that function, something like keep_tags, that rather than keeping only these :

_keyword_to_copy = [
    "StudyInstanceUID",
    "SeriesInstanceUID",
    "Modality",
    "PixelSpacing",
    "ImagerPixelSpacing",
    "DistanceSourceToDetector",
    "ViewPosition",
    "PatientSex",
]

it retains all dicom tags as seen at file open?

[blowekamp]

Care to make a pull request with your proposed changes/feature?

[blowekamp]

@ryder-cobean-nih Can you share your proposed changes?

[ryder-cobean-nih]

@blowekamp

Thanks and sorry for the delay!

Keep all tags by ryder-cobean-nih · Pull Request #50 · niaid/rap_sitkCore (github.com)

Take a look at those. Pretty minor change.