FsRandomUnpairedReader

FsRandomUnpairedReader class

dlf.data_generators.fs_pair_reader.FsRandomUnpairedReader(
    paths_lhs, paths_rhs, channels=3, lhs_limit=None, rhs_limit=None, preprocess_list=None, shuffle_buffer=100
)

A data generator which generates random pairs of images

Aliases

• FsRandomUnpairedReader
• fs_random_unpaired_reader

Arguments

• paths_lhs: list of str. List of glob patterns to find images for the left hand side
• paths_rhs: list of str. List of glob patterns to find images for the right hand side
• channels: int. Number of channels which each image should contain. Defaults to 3.
• lhs_limit: int. If specified N elements of lhs set are selected. Defaults to None.
• rhs_limit: int. If specified N elements of rhs set are selected. Defaults to None.
• preprocess_list: dict. Dictionary where the value describes a preprocessing method and the values are the arguments. Defaults to None.
• shuffle_buffer: int. Size of shuffle buffer. For details check: tf.data.Dataset. Defaults to 2000.

Raises

• FileNotFoundError: If one path of the lhs path set is not valid
• FileNotFoundError: If one path of the rhs path set is not valid
• ValueError: If crop or resize is not specified in preprocessing pipeline

YAML Configuration

input_reader:
    training_reader:
        name: fs_random_unpaired_reader
        paths_lhs: /mnt/data/datasets/theodore_wheeled_walker/*_img.png
        paths_rhs:
            - /mnt/data/datasets/omnidetector-Flat/JPEGImages/*.jpg
            - /mnt/data/datasets/indoor_cvpr/Images/**/*.jpg
        lhs_limit: 20000
        rhs_limit: 20000
        shuffle_buffer: 400
        preprocess_list:
            crop:
                width: 512
                height: 512

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