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img_split_dota.py function merging to img_split.py #10

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7deaef7
add generate_txt argument for create .txt
ziippy Sep 11, 2022
05f9a9c
Merge branch 'jbwang1997:master' into master
ziippy Sep 11, 2022
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6 changes: 4 additions & 2 deletions BboxToolkit/datasets/DOTAio.py
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Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@ def _load_dota_single(imgfile, img_dir, ann_dir, cls2lbl):


def _load_dota_txt(txtfile, cls2lbl):
gsd, bboxes, labels, diffs = None, [], [], []
gsd, bboxes, labels, diffs, classnames = None, [], [], [], []
if txtfile is None:
pass
elif not osp.isfile(txtfile):
Expand All @@ -75,14 +75,16 @@ def _load_dota_txt(txtfile, cls2lbl):
bboxes.append([float(i) for i in items[:8]])
labels.append(cls2lbl[items[8]])
diffs.append(int(items[9]) if len(items) == 10 else 0)
classnames.append(items[8])

bboxes = np.array(bboxes, dtype=np.float32) if bboxes else \
np.zeros((0, 8), dtype=np.float32)
labels = np.array(labels, dtype=np.int64) if labels else \
np.zeros((0, ), dtype=np.int64)
diffs = np.array(diffs, dtype=np.int64) if diffs else \
np.zeros((0, ), dtype=np.int64)
ann = dict(bboxes=bboxes, labels=labels, diffs=diffs)
classnames = np.array(classnames, dtype=np.str) if classnames else labels
ann = dict(bboxes=bboxes, labels=labels, diffs=diffs, classnames=classnames)
return dict(gsd=gsd, ann=ann)


Expand Down
28 changes: 25 additions & 3 deletions tools/img_split.py
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,8 @@ def add_parser(parser):
help='to save pkl and splitted images')
parser.add_argument('--save_ext', type=str, default='.png',
help='the extension of saving images')
parser.add_argument('--generate_txt', action='store_true',
help='to generate txt for splitted images')


def abspath(path):
Expand Down Expand Up @@ -171,7 +173,7 @@ def get_window_obj(info, windows, iof_thr):


def crop_and_save_img(info, windows, window_anns, img_dir, no_padding,
padding_value, filter_empty, save_dir, img_ext):
padding_value, filter_empty, save_dir, img_ext, generate_txt, save_txt):
img = cv2.imread(osp.join(img_dir, info['filename']))
patch_infos = []
for i in range(windows.shape[0]):
Expand Down Expand Up @@ -211,18 +213,33 @@ def crop_and_save_img(info, windows, window_anns, img_dir, no_padding,
cv2.imwrite(osp.join(save_dir, patch_info['id']+img_ext), patch)
patch_info['filename'] = patch_info['id'] + img_ext
patch_infos.append(patch_info)

if generate_txt:
# annotation txt file generation
txtpath = osp.join(save_txt, patch_info['id']+'.txt')
txtfile = open(txtpath, "a");
for i in range(len(patch_info['ann']['labels'])):
box = np.array2string(patch_info['ann']['bboxes'][i]).strip("[""]")
box += ' '
box += str(patch_info['ann']['classnames'][i])
box += ' '
box += str(patch_info['ann']['diffs'][i])
box += '\n'
#print(box)
txtfile.write(box)
txtfile.close()

return patch_infos


def single_split(arguments, sizes, gaps, img_rate_thr, iof_thr, no_padding,
padding_value, filter_empty, save_dir, img_ext, lock,
padding_value, filter_empty, save_dir, img_ext, generate_txt, save_txt, lock,
prog, total, logger):
info, img_dir = arguments
windows = get_sliding_window(info, sizes, gaps, img_rate_thr)
window_anns = get_window_obj(info, windows, iof_thr)
patch_infos = crop_and_save_img(info, windows, window_anns, img_dir, no_padding,
padding_value, filter_empty, save_dir, img_ext)
padding_value, filter_empty, save_dir, img_ext, generate_txt, save_txt)
assert patch_infos or (filter_empty and info['ann']['bboxes'].size == 0)

lock.acquire()
Expand Down Expand Up @@ -271,8 +288,10 @@ def main():
gaps += [int(gap / rate) for gap in args.gaps]
save_imgs = osp.join(args.save_dir, 'images')
save_files = osp.join(args.save_dir, 'annfiles')
save_txt = osp.join(args.save_dir, 'txt')
os.makedirs(save_imgs)
os.makedirs(save_files)
os.makedirs(save_txt)
logger = setup_logger(save_files)

print('Loading original data!!!')
Expand Down Expand Up @@ -304,6 +323,8 @@ def main():
filter_empty=args.filter_empty,
save_dir=save_imgs,
img_ext=args.save_ext,
generate_txt=args.generate_txt,
save_txt=save_txt,
lock=manager.Lock(),
prog=manager.Value('i', 0),
total=len(infos),
Expand Down Expand Up @@ -334,3 +355,4 @@ def main():

if __name__ == '__main__':
main()

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