segmentation fault when importing instaboost

[yanjiaweisysu]

After pip installing instaboost, I tried to import in python, but segmentation fault happens.

python                  
Python 3.7.2 (default, Dec 29 2018, 06:19:36) 
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import instaboost
Segmentation fault

[Fang-Haoshu]

Hi, what is your environment? Can you try if python3.6 works?

[Fang-Haoshu]

We are currently looking into this issue and will update the pip package soon. BTW, what is the version of your opencv?

[yanjiaweisysu]

That's cool. My opencv is 4.0.1.

[GothicAi]

Hi! This problem may be caused by opencv-mat package. We have tested our opencv-mat package on several different environments, and we find out that this package may not work well on OpenCV 3.x or higher sometimes. May you try OpenCV 2.4.x instead? Some instructions here may help. Thanks !

[Fang-Haoshu]

Hi, we update an easy install and fast version. You can check it out here: https://github.com/GothicAi/Instaboost#easy-install-version

[jaideep11061982]

@GothicAi @Fang-Haoshu

I try to use it in MMdet
but i get below error ,an help

Original Traceback (most recent call last):
dict(type='InstaBoost'),

  File "/opt/conda/lib/python3.7/site-packages/torch/utils/data/_utils/worker.py", line 287, in _worker_loop
    data = fetcher.fetch(index)
  File "/opt/conda/lib/python3.7/site-packages/torch/utils/data/_utils/fetch.py", line 44, in fetch
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/opt/conda/lib/python3.7/site-packages/torch/utils/data/_utils/fetch.py", line 44, in <listcomp>
    data = [self.dataset[idx] for idx in possibly_batched_index]
  File "/kaggle/working/mmdetection/mmdet/datasets/custom.py", line 195, in __getitem__
    data = self.prepare_train_img(idx)
  File "/kaggle/working/mmdetection/mmdet/datasets/custom.py", line 218, in prepare_train_img
    return self.pipeline(results)
  File "/kaggle/working/mmdetection/mmdet/datasets/pipelines/compose.py", line 41, in __call__
    data = t(data)
  File "/kaggle/working/mmdetection/mmdet/datasets/pipelines/instaboost.py", line 110, in __call__
    anns, img.astype(np.uint8), self.cfg, background=None)
  File "/opt/conda/lib/python3.7/site-packages/instaboostfast/InstaBoost.py", line 33, in get_new_data
    extract(ori_anns, ori_img, config)
  File "/opt/conda/lib/python3.7/site-packages/instaboostfast/get_instance_group.py", line 134, in extract
    mask, labels = __get_coco_masks(anns, height, width)
  File "/opt/conda/lib/python3.7/site-packages/instaboostfast/get_instance_group.py", line 54, in __get_coco_masks
    m = cocoseg_to_binary(ann['segmentation'], height, width)  # zero one mask
  File "/opt/conda/lib/python3.7/site-packages/instaboostfast/get_instance_group.py", line 29, in cocoseg_to_binary
    rle = cocomask.merge(seg)
  File "pycocotools/_mask.pyx", line 153, in pycocotools._mask.merge
  File "pycocotools/_mask.pyx", line 128, in pycocotools._mask._frString
TypeError: string indices must be integers