# Package hdf.object.h4

- Class Summary
  Class | Description
  --- | ---
  H4Datatype | This class defines HDF4 data type characteristics and APIs for a data type.
  H4File | This class provides file level APIs.
  H4GRImage | H4GRImage describes an HDF4 general raster(GR) image and operations performed on the GR image.
  H4Group | An H4Group is a vgroup in HDF4, inheriting from Group.
  H4SDS | H4SDS describes HDF4 Scientific Data Sets (SDS) and operations performed on the SDS.
  H4Vdata | H4Vdata describes a multi-dimension array of HDF4 vdata, inheriting CompoundDS.

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