add detectron2 support

[kadirnar]

Sahi algoritmasına detectron2 kütüphanesini eklenmesi amaçlanmıştır.

Yapılan Değişiklikler:

Model.py: class Detectron2Model(DetectionModel) sınıfı eklendi.
utils/detectron2.py: Test cfg kodu ve .pkl yolları eklendi.
tests/test_detectron2.py: Modelin test edilmesi için test_detectron2.py dosyası oluşturuldu.

[fcakyon]

@kadirnar katkilarindan dolayi cok tesekkurler, baya guzel duruyor PR 🚀

Kodlarini su basliktaki adimlari takip ederek isort ve black ile formatlayip commitleyip tekrar pushlayabilir misin forkuna?
https://github.com/obss/sahi#contributing

[fcakyon]

@kadirnar isort ve black ile tekrar formatlaman gerekiyor, sahi/model.py formati hata veriyor :)

[kadirnar]

Config_path değişkenin hatası halen devam etmektedir.

join() argument must be str, bytes, or os.PathLike object, not 'NoneType'
01/03/2022 17:46:48 - INFO - fvcore.common.checkpoint -   [Checkpointer] Loading from mask_rcnn_R_50_C4_3x.pth ...
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.cls_score.weight' to the model due to incompatible shapes: (446, 2048) in the checkpoint but (81, 2048) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.cls_score.bias' to the model due to incompatible shapes: (446,) in the checkpoint but (81,) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.bbox_pred.weight' to the model due to incompatible shapes: (1780, 2048) in the checkpoint but (320, 2048) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.bbox_pred.bias' to the model due to incompatible shapes: (1780,) in the checkpoint but (320,) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Some model parameters or buffers are not found in the checkpoint:
roi_heads.box_predictor.bbox_pred.{bias, weight}
roi_heads.box_predictor.cls_score.{bias, weight}
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   The checkpoint state_dict contains keys that are not used by the model:
  roi_heads.mask_head.deconv.{bias, weight}
  roi_heads.mask_head.predictor.{bias, weight}
Traceback (most recent call last):
  File "/home/kadir/Desktop/sahi/open.py", line 18, in <module>
    detection_model = Detectron2DetectionModel(
  File "/home/kadir/Desktop/sahi/sahi/model.py", line 70, in __init__
    self.load_model()
  File "/home/kadir/Desktop/sahi/sahi/model.py", line 536, in load_model
    metadata = MetadataCatalog.get(cfg.DATASETS.TRAIN[0])
IndexError: tuple index out of range

[fcakyon]

Config_path değişkenin hatası halen devam etmektedir.

join() argument must be str, bytes, or os.PathLike object, not 'NoneType'
01/03/2022 17:46:48 - INFO - fvcore.common.checkpoint -   [Checkpointer] Loading from mask_rcnn_R_50_C4_3x.pth ...
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.cls_score.weight' to the model due to incompatible shapes: (446, 2048) in the checkpoint but (81, 2048) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.cls_score.bias' to the model due to incompatible shapes: (446,) in the checkpoint but (81,) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.bbox_pred.weight' to the model due to incompatible shapes: (1780, 2048) in the checkpoint but (320, 2048) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.bbox_pred.bias' to the model due to incompatible shapes: (1780,) in the checkpoint but (320,) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Some model parameters or buffers are not found in the checkpoint:
roi_heads.box_predictor.bbox_pred.{bias, weight}
roi_heads.box_predictor.cls_score.{bias, weight}
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   The checkpoint state_dict contains keys that are not used by the model:
  roi_heads.mask_head.deconv.{bias, weight}
  roi_heads.mask_head.predictor.{bias, weight}
Traceback (most recent call last):
  File "/home/kadir/Desktop/sahi/open.py", line 18, in <module>
    detection_model = Detectron2DetectionModel(
  File "/home/kadir/Desktop/sahi/sahi/model.py", line 70, in __init__
    self.load_model()
  File "/home/kadir/Desktop/sahi/sahi/model.py", line 536, in load_model
    metadata = MetadataCatalog.get(cfg.DATASETS.TRAIN[0])
IndexError: tuple index out of range

su satirda metadata'yi cekemiyor config verilmedigi icin: metadata = MetadataCatalog.get(cfg.DATASETS.TRAIN[0]).

metadatayi ne icin cekiyordun configden?

[kadirnar]

Config_path değişkenin hatası halen devam etmektedir.

join() argument must be str, bytes, or os.PathLike object, not 'NoneType'
01/03/2022 17:46:48 - INFO - fvcore.common.checkpoint -   [Checkpointer] Loading from mask_rcnn_R_50_C4_3x.pth ...
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.cls_score.weight' to the model due to incompatible shapes: (446, 2048) in the checkpoint but (81, 2048) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.cls_score.bias' to the model due to incompatible shapes: (446,) in the checkpoint but (81,) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.bbox_pred.weight' to the model due to incompatible shapes: (1780, 2048) in the checkpoint but (320, 2048) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Skip loading parameter 'roi_heads.box_predictor.bbox_pred.bias' to the model due to incompatible shapes: (1780,) in the checkpoint but (320,) in the model! You might want to double check if this is expected.
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   Some model parameters or buffers are not found in the checkpoint:
roi_heads.box_predictor.bbox_pred.{bias, weight}
roi_heads.box_predictor.cls_score.{bias, weight}
01/03/2022 17:46:49 - WARNING - fvcore.common.checkpoint -   The checkpoint state_dict contains keys that are not used by the model:
  roi_heads.mask_head.deconv.{bias, weight}
  roi_heads.mask_head.predictor.{bias, weight}
Traceback (most recent call last):
  File "/home/kadir/Desktop/sahi/open.py", line 18, in <module>
    detection_model = Detectron2DetectionModel(
  File "/home/kadir/Desktop/sahi/sahi/model.py", line 70, in __init__
    self.load_model()
  File "/home/kadir/Desktop/sahi/sahi/model.py", line 536, in load_model
    metadata = MetadataCatalog.get(cfg.DATASETS.TRAIN[0])
IndexError: tuple index out of range

su satirda metadata'yi cekemiyor config verilmedigi icin: metadata = MetadataCatalog.get(cfg.DATASETS.TRAIN[0]).

metadatayi ne icin cekiyordun configden?

Veri seti hakkında bilgi almak için kullanıyorduk. Bunu farklı modüller ile çözmek için araştıracağım. Şuanlık en basit yöntem:

cfg.MODEL.ROI_HEADS.NUM_CLASSES =