

"""simple docstring"""





import numpy as np
from cva import COLOR_BGR2GRAY, CV_8UC3, cvtColor, filteraD, imread, imshow, waitKey




def   _A  (  UpperCamelCase_					:	Optional[Any],      UpperCamelCase_					:	str,      UpperCamelCase_					:	Tuple,      UpperCamelCase_					:	int,      UpperCamelCase_					:	Union[str, Any],      UpperCamelCase_					:	List[str])     ->						Union[str, Any]:
   '''simple docstring'''


   if (ksize % 2) == 0:
      __lowercase								=						ksize + 1
   __lowercase								=						np.zeros((ksize, ksize),      dtype=np.floataa)

   # each value
   for y in range(lowerCAmelCase__):
      for x in range(lowerCAmelCase__):
         # distance from center
         __lowercase								=						x - ksize // 2
         __lowercase								=						y - ksize // 2

         # degree to radiant
         __lowercase								=						theta / 180 * np.pi
         __lowercase								=						np.cos(_theta)
         __lowercase								=						np.sin(_theta)

         # get kernel x
         __lowercase								=						cos_theta * px + sin_theta * py

         # get kernel y
         __lowercase								=						-sin_theta * px + cos_theta * py

         # fill kernel
         __lowercase								=						np.exp(
             -(_x**2 + gamma**2 * _y**2) / (2 * sigma**2)) * np.cos(2 * np.pi * _x / lambd + psi)

   return gabor


if __name__ == "__main__":
   import doctest

   doctest.testmod()
   # read original image
   _a							=							imread('../image_data/lena.jpg')
   # turn image in gray scale value
   _a							=							cvtColor(img, COLOR_BGR2GRAY)

   # Apply multiple Kernel to detect edges
   _a							=							np.zeros(gray.shape[:2])
   for theta in [0, 30, 60, 90, 1_20, 1_50]:
      _a							=							gabor_filter_kernel(10, 8, theta, 10, 0, 0)
      out += filteraD(gray, CV_8UC3, kernel_aa)
   _a							=							out / out.max() * 2_55
   _a							=							out.astype(np.uinta)

   imshow('Original', gray)
   imshow('Gabor filter with 20x20 mask and 6 directions', out)

   waitKey(0)







"""simple docstring"""





import numpy as np
import torch
from torch.utils.data import Dataset, IterableDataset

from ..utils.generic import ModelOutput




class  _lowerCAmelCase  (     lowercase       ):







 """simple docstring"""







 def __init__(      self							:      List[str], UpperCAmelCase__							:      Union[str, Any], UpperCAmelCase__							:      Any, UpperCAmelCase__							:      Dict     ):
    __lowercase								=						dataset
    __lowercase								=						process
    __lowercase								=						params


 def __len__(      self							:      str     ):
    return len(self.dataset     )



 def __getitem__(      self							:      List[Any], UpperCAmelCase__							:      int     ):
    __lowercase								=						self.dataset[i]
    __lowercase								=						self.process(UpperCAmelCase__, **self.params     )
    return processed







class  _lowerCAmelCase  (     lowercase       ):







 """simple docstring"""







 def __init__(      self							:      Optional[Any], UpperCAmelCase__							:      Dict, UpperCAmelCase__							:      Any, UpperCAmelCase__							:      Union[str, Any], UpperCAmelCase__							:      List[Any]=None     ):
    __lowercase								=						loader
    __lowercase								=						infer
    __lowercase								=						params
    if loader_batch_size == 1:
       # Let's spare some time by deactivating altogether
       __lowercase								=						None
    __lowercase								=						loader_batch_size

    # Internal bookkeeping
    __lowercase								=						None
    __lowercase								=						None


 def __len__(      self							:      str     ):
    return len(self.loader     )


 def __iter__(      self							:      List[str]     ):
    __lowercase								=						iter(self.loader     )
    return self


 def  _lowercase			(      self							:      Union[str, Any]     ):
    if isinstance(self._loader_batch_data, torch.Tensor     ):
       # Batch data is simple tensor, just fetch the slice
       __lowercase								=						self._loader_batch_data[self._loader_batch_index]
    else:
       # Batch data is assumed to be BaseModelOutput (or dict)
       __lowercase								=						{}
       for k, element in self._loader_batch_data.items():
          if isinstance(UpperCAmelCase__, UpperCAmelCase__     ):
             # Convert ModelOutput to tuple first
             __lowercase								=						element.to_tuple()
             if isinstance(element[0], torch.Tensor     ):
                __lowercase								=						tuple(el[self._loader_batch_index].unsqueeze(0     ) for el in element     )
             elif isinstance(element[0], np.ndarray     ):
                __lowercase								=						tuple(np.expand_dims(el[self._loader_batch_index], 0     ) for el in element     )
             continue
          if k in {"hidden_states", "past_key_values", "attentions"} and isinstance(UpperCAmelCase__, UpperCAmelCase__     ):
             # Those are stored as lists of tensors so need specific unbatching.
             if isinstance(element[0], torch.Tensor     ):
                __lowercase								=						tuple(el[self._loader_batch_index].unsqueeze(0     ) for el in element     )
             elif isinstance(element[0], np.ndarray     ):
                __lowercase								=						tuple(np.expand_dims(el[self._loader_batch_index], 0     ) for el in element     )
             continue
          if element is None:
             # This can happen for optional data that get passed around
             __lowercase								=						None
          elif isinstance(element[self._loader_batch_index], torch.Tensor     ):
             # Take correct batch data, but make it looked like batch_size=1
             # For compatibility with other methods within transformers

             __lowercase								=						element[self._loader_batch_index].unsqueeze(0     )
          elif isinstance(element[self._loader_batch_index], np.ndarray     ):
             # Take correct batch data, but make it looked like batch_size=1
             # For compatibility with other methods within transformers
             __lowercase								=						np.expand_dims(element[self._loader_batch_index], 0     )
          else:
             # This is typically a list, so no need to `unsqueeze`.
             __lowercase								=						element[self._loader_batch_index]
            # Recreate the element by reusing the original class to make it look
            # batch_size=1
       __lowercase								=						self._loader_batch_data.__class__(UpperCAmelCase__     )
    self._loader_batch_index += 1
    return result



 def  _lowercase			(      self							:      Tuple     ):
    if self._loader_batch_index is not None and self._loader_batch_index < self.loader_batch_size:
       # We are currently unrolling a batch so we just need to return
       # the current item within a batch
       return self.loader_batch_item()

    # We're out of items within a batch
    __lowercase								=						next(self.iterator     )
    __lowercase								=						self.infer(UpperCAmelCase__, **self.params     )
    # We now have a batch of "inferred things".
    if self.loader_batch_size is not None:
       # Try to infer the size of the batch
       if isinstance(UpperCAmelCase__, torch.Tensor     ):
          __lowercase								=						processed
       else:
          __lowercase								=						list(processed.keys()     )[0]
          __lowercase								=						processed[key]
       if isinstance(UpperCAmelCase__, UpperCAmelCase__     ):
          __lowercase								=						len(UpperCAmelCase__     )
       else:
          __lowercase								=						first_tensor.shape[0]
       if 0 < observed_batch_size < self.loader_batch_size:
          # could be last batch so we can't unroll as many
          # elements.
          __lowercase								=						observed_batch_size
       # Setting internal index to unwrap the batch
       __lowercase								=						processed
       __lowercase								=						0
       return self.loader_batch_item()
    else:
       # We're not unrolling batches
       return processed







class  _lowerCAmelCase  (     lowercase       ):







 """simple docstring"""







 def __init__(      self							:      Union[str, Any], UpperCAmelCase__							:      Any, UpperCAmelCase__							:      List[str], UpperCAmelCase__							:      int, UpperCAmelCase__							:      str=None     ):
    super().__init__(UpperCAmelCase__, UpperCAmelCase__, UpperCAmelCase__     )


 def __iter__(      self							:      str     ):
    __lowercase								=						iter(self.loader     )
    __lowercase								=						None
    return self



 def  _lowercase			(      self							:      int     ):
    if self.subiterator is None:
       __lowercase								=						self.infer(next(self.iterator     ), **self.params     )
    try:
       # Try to return next item
       __lowercase								=						next(self.subiterator     )
    except StopIteration:
       # When a preprocess iterator ends, we can start lookig at the next item
       # ChunkIterator will keep feeding until ALL elements of iterator
       # all have created their subiterator and have been iterating against.
       #
       # Another way to look at it, is we're basically flattening lists of lists
       # into a single list, but with generators
       __lowercase								=						self.infer(next(self.iterator     ), **self.params     )
       __lowercase								=						next(self.subiterator     )
    return processed







class  _lowerCAmelCase  (     lowercase       ):







 """simple docstring"""







 def __iter__(      self							:      int     ):
    __lowercase								=						iter(self.loader     )
    return self



 def  _lowercase			(      self							:      List[str]     ):
    # Extremely similar to PipelineIterator in its unpacking mechanism
    # BUT, we have an extra required item which is the presence of `is_last`
    # That is because everything is flattened by `PipelineChunkIterator` we
    # need to keep track of how to regroup here in the original `process`
    # boundaries so that `process` and `postprocess` see the same data.

    # This iterator accumulates items (possibly while unbatching) until it
    # its a `is_last` and then just passes it on to the caller.
    __lowercase								=						False
    __lowercase								=						[]
    if self._loader_batch_index is not None and self._loader_batch_index < self.loader_batch_size:
       while self._loader_batch_index < self.loader_batch_size:
          __lowercase								=						self.loader_batch_item()
          __lowercase								=						item.pop("is_last"     )
          accumulator.append(UpperCAmelCase__     )
          if is_last:
             return accumulator

    while not is_last:
       __lowercase								=						self.infer(next(self.iterator     ), **self.params     )
       if self.loader_batch_size is not None:
          if isinstance(UpperCAmelCase__, torch.Tensor     ):
             __lowercase								=						processed
          else:
             __lowercase								=						list(processed.keys()     )[0]
             __lowercase								=						processed[key]
          if isinstance(UpperCAmelCase__, UpperCAmelCase__     ):
             __lowercase								=						len(UpperCAmelCase__     )
          else:
             __lowercase								=						first_tensor.shape[0]
          if 0 < observed_batch_size < self.loader_batch_size:
             # could be last batch so we can't unroll as many
             # elements.
             __lowercase								=						observed_batch_size
          __lowercase								=						processed
          __lowercase								=						0
          while self._loader_batch_index < self.loader_batch_size:
             __lowercase								=						self.loader_batch_item()
             __lowercase								=						item.pop("is_last"     )
             accumulator.append(UpperCAmelCase__     )
             if is_last:
                return accumulator
       else:
          __lowercase								=						processed
          __lowercase								=						item.pop("is_last"     )
          accumulator.append(UpperCAmelCase__     )
    return accumulator







class  _lowerCAmelCase  (     lowercase       ):







 """simple docstring"""







 def __init__(      self							:      List[Any], UpperCAmelCase__							:      Dataset, UpperCAmelCase__							:      str     ):
    __lowercase								=						dataset
    __lowercase								=						key


 def __len__(      self							:      Optional[Any]     ):
    return len(self.dataset     )



 def __getitem__(      self							:      Union[str, Any], UpperCAmelCase__							:      Any     ):
    return self.dataset[i][self.key]







class  _lowerCAmelCase  (     lowercase       ):







 """simple docstring"""







 def __init__(      self							:      str, UpperCAmelCase__							:      Dataset, UpperCAmelCase__							:      str, UpperCAmelCase__							:      str     ):
    __lowercase								=						dataset
    __lowercase								=						keya
    __lowercase								=						keya


 def __len__(      self							:      Optional[int]     ):
    return len(self.dataset     )



 def __getitem__(      self							:      Dict, UpperCAmelCase__							:      Tuple     ):
    return {"text": self.dataset[i][self.keya], "text_pair": self.dataset[i][self.keya]}




