Data Transformers¶
Data transformers apply transformations to data. Note that the transformations are limited to simple, in-place operations that do not change the shape of the data. If more complicated transformations like random projection or feature mapping are needed, consider using a data transformation layer instead.
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class
DataTransformers.
SubMean
¶ Subtract mean from the data. The transformer does not have enough information to compute the data mean, thus the mean should be computed in advance.
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mean_blob
¶ Default
NullBlob()
. A blob containing the mean.
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mean_file
¶ Default
""
. Whenmean_blob
is aNullBlob
, this can be used to specify a HDF5 file containing the mean. The mean should be stored with the namemean
in the HDF5 file.
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