|
| 1 | +import argparse |
| 2 | +from typing import List |
| 3 | + |
| 4 | +from idc.api import ObjectDetectionData, flatten_list, make_list |
| 5 | +from idc.imgaug.filter._sub_images_utils import PLACEHOLDERS, DEFAULT_SUFFIX, \ |
| 6 | + extract_regions, locatedobject_to_xyxy |
| 7 | +from seppl.io import Filter |
| 8 | +from wai.logging import LOGGING_WARNING |
| 9 | + |
| 10 | + |
| 11 | +class RegionOfInterestImages(Filter): |
| 12 | + """ |
| 13 | + Extracts sub-images using the bbox of all the annotations that have matching labels. |
| 14 | + """ |
| 15 | + |
| 16 | + def __init__(self, labels: List[str] = None, suffix: str = DEFAULT_SUFFIX, |
| 17 | + logger_name: str = None, logging_level: str = LOGGING_WARNING): |
| 18 | + """ |
| 19 | + Initializes the filter. |
| 20 | +
|
| 21 | + :param labels: the label(s) to extract, extracts all if None or the list is empty |
| 22 | + :type labels: list |
| 23 | + :param suffix: the suffix pattern to use for the generated sub-images (with placeholders) |
| 24 | + :type suffix: str |
| 25 | + :param logger_name: the name to use for the logger |
| 26 | + :type logger_name: str |
| 27 | + :param logging_level: the logging level to use |
| 28 | + :type logging_level: str |
| 29 | + """ |
| 30 | + super().__init__(logger_name=logger_name, logging_level=logging_level) |
| 31 | + self.labels = labels |
| 32 | + self.suffix = suffix |
| 33 | + |
| 34 | + def name(self) -> str: |
| 35 | + """ |
| 36 | + Returns the name of the handler, used as sub-command. |
| 37 | +
|
| 38 | + :return: the name |
| 39 | + :rtype: str |
| 40 | + """ |
| 41 | + return "roi-images" |
| 42 | + |
| 43 | + def description(self) -> str: |
| 44 | + """ |
| 45 | + Returns a description of the filter. |
| 46 | +
|
| 47 | + :return: the description |
| 48 | + :rtype: str |
| 49 | + """ |
| 50 | + return "Extracts sub-images using the bbox of all the object detection annotations that have matching labels. If no labels are specified, all annotations are extracted." |
| 51 | + |
| 52 | + def accepts(self) -> List: |
| 53 | + """ |
| 54 | + Returns the list of classes that are accepted. |
| 55 | +
|
| 56 | + :return: the list of classes |
| 57 | + :rtype: list |
| 58 | + """ |
| 59 | + return [ObjectDetectionData] |
| 60 | + |
| 61 | + def generates(self) -> List: |
| 62 | + """ |
| 63 | + Returns the list of classes that get produced. |
| 64 | +
|
| 65 | + :return: the list of classes |
| 66 | + :rtype: list |
| 67 | + """ |
| 68 | + return [ObjectDetectionData] |
| 69 | + |
| 70 | + def _create_argparser(self) -> argparse.ArgumentParser: |
| 71 | + """ |
| 72 | + Creates an argument parser. Derived classes need to fill in the options. |
| 73 | +
|
| 74 | + :return: the parser |
| 75 | + :rtype: argparse.ArgumentParser |
| 76 | + """ |
| 77 | + parser = super()._create_argparser() |
| 78 | + parser.add_argument("--labels", type=str, default=None, help="The label(s) of the annotations to forward as sub-images, uses all annotations if not specified.", required=False, nargs="*") |
| 79 | + parser.add_argument("-S", "--suffix", type=str, default=DEFAULT_SUFFIX, help="The suffix pattern to use for the generated sub-images, available placeholders: " + "|".join(PLACEHOLDERS), required=False) |
| 80 | + return parser |
| 81 | + |
| 82 | + def _apply_args(self, ns: argparse.Namespace): |
| 83 | + """ |
| 84 | + Initializes the object with the arguments of the parsed namespace. |
| 85 | +
|
| 86 | + :param ns: the parsed arguments |
| 87 | + :type ns: argparse.Namespace |
| 88 | + """ |
| 89 | + super()._apply_args(ns) |
| 90 | + self.labels = ns.labels |
| 91 | + self.suffix = ns.suffix |
| 92 | + |
| 93 | + def initialize(self): |
| 94 | + """ |
| 95 | + Initializes the processing, e.g., for opening files or databases. |
| 96 | + """ |
| 97 | + super().initialize() |
| 98 | + if (self.labels is not None) and (len(self.labels) == 0): |
| 99 | + self.labels = None |
| 100 | + if self.suffix is None: |
| 101 | + self.suffix = DEFAULT_SUFFIX |
| 102 | + |
| 103 | + def _do_process(self, data): |
| 104 | + """ |
| 105 | + Processes the data record(s). |
| 106 | +
|
| 107 | + :param data: the record(s) to process |
| 108 | + :return: the potentially updated record(s) |
| 109 | + """ |
| 110 | + result = [] |
| 111 | + labels = None |
| 112 | + if self.labels is not None: |
| 113 | + labels = set(self.labels) |
| 114 | + |
| 115 | + for item in make_list(data): |
| 116 | + ann = item.get_absolute() |
| 117 | + if ann is None: |
| 118 | + self.logger().warning("Failed to obtain absolute annotations!") |
| 119 | + result.append(item) |
| 120 | + continue |
| 121 | + |
| 122 | + # determines bboxes to extract |
| 123 | + lobjs = [] |
| 124 | + xyxys = [] |
| 125 | + for o in ann: |
| 126 | + extract = (labels is None) or (("type" in o.metadata) and (o.metadata["type"] in labels)) |
| 127 | + if not extract: |
| 128 | + continue |
| 129 | + lobjs.append(o) |
| 130 | + xyxys.append(locatedobject_to_xyxy(o)) |
| 131 | + |
| 132 | + sub_items = extract_regions(item, lobjs, xyxys, self.suffix, |
| 133 | + False, False, self.logger()) |
| 134 | + # failed to process? |
| 135 | + if sub_items is None: |
| 136 | + result.append(item) |
| 137 | + else: |
| 138 | + for _, sub_item, _ in sub_items: |
| 139 | + result.append(sub_item) |
| 140 | + |
| 141 | + return flatten_list(result) |
0 commit comments