Crops and/or pads an image deterministically. Depending on the given output patch size and the position (top left corner) relative to the

Generates random patch coordinates that meet specified requirements.

Resizes images to a specified height and width in pixels.

Returns all bounding boxes that are valid with respect to a the defined criteria.

Converts 1-channel and 4-channel images to 3-channel images. Does nothing to images that already have 3 channels. In the case of 4-channel im

A generator to generate batches of samples and corresponding labels indefinitely. Can shuffle the dataset consistently after each complete

Adds the minimal possible padding to an image that results in a patch of the given fixed aspect ratio that contains the entire image. Sin

Randomly samples a patch from an image. The randomness refers to whatever randomness may be introduced by the patch coordinate generator, the

Changes the brightness of RGB images. Important: - Expects RGB input. - Expects input array to be of `dtype` `float`.

Swaps the channels of images.

Changes the contrast of RGB images. Important: - Expects RGB input. - Expects input array to be of `dtype` `float`.

An exception class to be raised if a anything is wrong with the dataset, in particular if you try to generate batches when no dataset was l

An exception class to be raised if a generated batch ends up being degenerate, e.g. if a generated batch is empty.

An exception class to be raised if degenerate boxes are being detected.

Computes the mean average precision of the given Keras SSD model on the given dataset. Can compute the Pascal-VOC-style average precision i

Flips images horizontally or vertically.

Changes the gamma value of RGB images. Important: Expects RGB input.

Performs histogram equalization on HSV images. Importat: Expects HSV input.

Changes the hue of HSV images. Important: - Expects HSV input. - Expects input array to be of `dtype` `float`.

Rotates images counter-clockwise by 90, 180, or 270 degrees.

Changes the saturation of HSV images. Important: - Expects HSV input. - Expects input array to be of `dtype` `float`.

Scales images, i.e. zooms in or out.

Translates images horizontally and/or vertically.

Generates pairs of floating point values that represent lower and upper bounds from a given sample space.

Converts images between RGB, HSV and grayscale color spaces. This is just a wrapper around `cv2.cvtColor()`.

Converts images represented as Numpy arrays between `uint8` and `float32`. Serves as a helper for certain photometric distortions. This is ju

Crops off the specified numbers of pixels from the borders of images. This is just a convenience interface for `CropPad`.

Returns `True` if a given minimum number of bounding boxes meets given overlap requirements with an image of a given height and width.

Pads images by the specified numbers of pixels on each side. This is just a convenience interface for `CropPad`.

Randomly changes the brightness of RGB images. Important: - Expects RGB input. - Expects input array to be of `dtype` `float`

Randomly swaps the channels of RGB images. Important: Expects RGB input.

Randomly changes the contrast of RGB images. Important: - Expects RGB input. - Expects input array to be of `dtype` `float`.

Randomly flips images horizontally or vertically. The randomness only refers to whether or not the image will be flipped.

Randomly changes the gamma value of RGB images. Important: Expects RGB input.

Randomly performs histogram equalization on HSV images. The randomness only refers to whether or not the equalization is performed. Impor

Randomly changes the hue of HSV images. Important: - Expects HSV input. - Expects input array to be of `dtype` `float`.

Crops the largest possible patch of a given fixed aspect ratio from an image. Since the aspect ratio of the sampled patches is constant,

Randomly samples a patch from an image. The randomness refers to whatever randomness may be introduced by the patch coordinate generator, the

Randomly rotates images counter-clockwise.

Randomly changes the saturation of HSV images. Important: - Expects HSV input. - Expects input array to be of `dtype` `float`

Randomly scales images.

Randomly translates images horizontally and/or vertically.

Resizes images to a specified height and width in pixels using a radnomly selected interpolation mode.

Transforms ground truth labels for object detection in images (2D bounding box coordinates and class labels) to the format required for