#!/usr/bin/env python
from os.path import dirname
import ubelt as ub
import scriptconfig as scfg
[docs]class CocoUnionCLI(object):
name = 'union'
[docs] class CLIConfig(scfg.Config):
"""
Combine multiple COCO datasets into a single merged dataset.
"""
default = {
'src': scfg.Value([], nargs='+', help='path to multiple input datasets', position=1),
'dst': scfg.Value('combo.kwcoco.json', help='path to output dataset'),
'absolute': scfg.Value(False, isflag=1, help='if True, converts paths to absolute paths before doing union')
}
epilog = """
Example Usage:
kwcoco union --src special:shapes8 special:shapes1 --dst=combo.kwcoco.json
"""
[docs] @classmethod
def main(cls, cmdline=True, **kw):
"""
Example:
>>> from kwcoco.cli.coco_union import * # NOQA
>>> import ubelt as ub
>>> dpath = ub.Path.appdir('kwcoco/tests/cli/union').ensuredir()
>>> dst_fpath = dpath / 'combo.kwcoco.json'
>>> kw = {
>>> 'src': ['special:shapes8', 'special:shapes1'],
>>> 'dst': dst_fpath
>>> }
>>> cmdline = False
>>> cls = CocoUnionCLI
>>> cls.main(cmdline, **kw)
"""
import kwcoco
config = cls.CLIConfig(kw, cmdline=cmdline)
print('config = {}'.format(ub.repr2(dict(config), nl=1)))
if config['src'] is None:
raise Exception('must specify sources: {}'.format(config['src']))
if len(config['src']) == 0:
raise ValueError('Must provide at least one input dataset')
datasets = []
for fpath in ub.ProgIter(config['src'], desc='reading datasets',
verbose=1):
print('reading fpath = {!r}'.format(fpath))
dset = kwcoco.CocoDataset.coerce(fpath)
if config['absolute']:
dset.reroot(absolute=True)
datasets.append(dset)
combo = kwcoco.CocoDataset.union(*datasets)
out_fpath = config['dst']
out_dpath = dirname(out_fpath)
if out_dpath:
ub.ensuredir(out_dpath)
print('Writing to out_fpath = {!r}'.format(out_fpath))
combo.fpath = out_fpath
combo.dump(combo.fpath, newlines=True)
_CLI = CocoUnionCLI
if __name__ == '__main__':
"""
CommandLine:
python -m kwcoco.cli.coco_union
"""
_CLI._main()