Table Of Contents
Table Of Contents

ImageRecordDataset

class mxnet.gluon.data.vision.datasets.ImageRecordDataset(filename, flag=1, transform=None)[source]

A dataset wrapping over a RecordIO file containing images.

Each sample is an image and its corresponding label.

Parameters:
  • filename (str) – Path to rec file.
  • flag ({0, 1}, default 1) –

    If 0, always convert images to greyscale.

    If 1, always convert images to colored (RGB).

  • transform (function, default None) – A user defined callback that transforms each sample. For example:

:param ::: transform=lambda data, label: (data.astype(np.float32)/255, label)

__init__(filename, flag=1, transform=None)[source]

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__(filename[, flag, transform]) Initialize self.
transform(fn[, lazy]) Returns a new dataset with each sample transformed by the transformer function fn.
transform_first(fn[, lazy]) Returns a new dataset with the first element of each sample transformed by the transformer function fn.