PatchDataset¶

tiatoolbox . models . dataset . classification . PatchDataset

class PatchDataset(inputs, labels=None)[source]¶

Defines a simple patch dataset, which inherits from the: torch.utils.data.Dataset class.

inputs¶: Either a list of patches, where each patch is a ndarray or a list of valid path with its extension be (“.jpg”, “.jpeg”, “.tif”, “.tiff”, “.png”) pointing to an image.

labels¶: List of label for sample at the same index in inputs. Default is None.

preproc_func¶: Preprocessing function used to transform the input data.

Examples

>>> # an user defined preproc func and expected behavior
>>> preproc_func = lambda img: img/2  # reduce intensity by half
>>> transformed_img = preproc_func(img)
>>> # create a dataset to get patches preprocessed by the above function
>>> ds = PatchDataset(
...     inputs=['/A/B/C/img1.png', '/A/B/C/img2.png'],
...     preproc_func=preproc_func
... )

Methods

Attributes