class documentation
class ImagePatchesExtractor(object): (source)
Constructor: ImagePatchesExtractor(samples, patches_field, include_labels, force_rgb, ...)
Class for iterating over the labeled/unlabeled image patches in a collection.
By default, this class emits only the image patches, but you can set include_labels to True to emit (img_patch, label) tuples.
| Parameters | |
| samples | a fiftyone.core.collections.SampleCollection |
| patches | the name of the field defining the image patches
in each sample to extract. Must be of type
fiftyone.core.labels.Detection,
fiftyone.core.labels.Detections,
fiftyone.core.labels.Polyline, or
fiftyone.core.labels.Polylines. This can be automatically
inferred (only) if samples is a patches view |
| include | whether to emit (img_patch, label) tuples rather than just image patches |
| force | whether to force convert the images to RGB |
| force | whether to minimally manipulate the patch bounding boxes into squares prior to extraction |
| alpha | an optional expansion/contraction to apply to the patches before extracting them, in [-1, inf). If provided, the length and width of the box are expanded (or contracted, when alpha < 0) by (100 * alpha)%. For example, set alpha = 0.1 to expand the boxes by 10%, and set alpha = -0.1 to contract the boxes by 10% |
| Method | __init__ |
Undocumented |
| Method | __iter__ |
Undocumented |
| Method | __len__ |
Undocumented |
| Instance Variable | alpha |
Undocumented |
| Instance Variable | force |
Undocumented |
| Instance Variable | force |
Undocumented |
| Instance Variable | include |
Undocumented |
| Instance Variable | patches |
Undocumented |
| Instance Variable | samples |
Undocumented |