




from PIL import Image




def 						SCREAMING_SNAKE_CASE__ (   lowercase						,lowercase					)  ->       Image:
   snake_case				:    List[str]           =	(259 * (level + 255)) / (255 * (259 - level))

   def contrast(lowercase					) -> int:
      return int(128 + factor * (c - 128)					)

   return img.point(lowercase					)


if __name__ == "__main__":
       # Load image
       with Image.open('image_data/lena.jpg') as img:
              # Change contrast to 170
              lowerCamelCase	:	Dict				=   change_contrast(img, 1_7_0)
              cont_img.save('image_data/lena_high_contrast.png', format='png')











from io import BytesIO
from typing import List, Union

import requests

from ..utils import add_end_docstrings, is_decord_available, is_torch_available, logging, requires_backends
from .base import PIPELINE_INIT_ARGS, Pipeline


if is_decord_available():
       import numpy as np
       from decord import VideoReader


if is_torch_available():
       from ..models.auto.modeling_auto import MODEL_FOR_VIDEO_CLASSIFICATION_MAPPING

lowerCamelCase	:	int				=   logging.get_logger(__name__)




@add_end_docstrings(UpperCamelCase__							)
class 						__lowercase		(UpperCamelCase__							):




      """simple docstring"""





      def __init__(				self    ,				*A    ,				**A     )		->    Optional[int]:
         super().__init__(*A    ,				**A     )
         requires_backends(self    ,				"""decord"""     )
         self.check_model_type(A     )

      def      UpperCAmelCase				(				self    ,				A=None    ,				A=None    ,				A=None     )		->    int:
         snake_case				:    Any           =	{}
         if frame_sampling_rate is not None:
            snake_case				:    int           =	frame_sampling_rate
         if num_frames is not None:
            snake_case				:    Union[str, Any]           =	num_frames

         snake_case				:    str           =	{}
         if top_k is not None:
            snake_case				:    Optional[int]           =	top_k
         return preprocess_params, {}, postprocess_params

      def __call__(				self    ,				A    ,				**A     )		->    Dict:
         return super().__call__(A    ,				**A     )

      def      UpperCAmelCase				(				self    ,				A    ,				A=None    ,				A=1     )		->    Tuple:
         if num_frames is None:
            snake_case				:    Tuple           =	self.model.config.num_frames

         if video.startswith("""http://"""     ) or video.startswith("""https://"""     ):
            snake_case				:    Optional[int]           =	BytesIO(requests.get(A     ).content     )

         snake_case				:    Optional[Any]           =	VideoReader(A     )
         videoreader.seek(0     )

         snake_case				:    Optional[Any]           =	0
         snake_case				:    Optional[Any]           =	num_frames * frame_sampling_rate - 1
         snake_case				:    Any           =	np.linspace(A    ,				A    ,				num=A    ,				dtype=np.intaa     )

         snake_case				:    int           =	videoreader.get_batch(A     ).asnumpy()
         snake_case				:    List[Any]           =	list(A     )

         snake_case				:    Optional[Any]           =	self.image_processor(A    ,				return_tensors=self.framework     )
         return model_inputs

      def      UpperCAmelCase				(				self    ,				A     )		->    List[str]:
         snake_case				:    Dict           =	self.model(**A     )
         return model_outputs

      def      UpperCAmelCase				(				self    ,				A    ,				A=5     )		->    int:
         if top_k > self.model.config.num_labels:
            snake_case				:    str           =	self.model.config.num_labels

         if self.framework == "pt":
            snake_case				:    List[Any]           =	model_outputs.logits.softmax(-1     )[0]
            snake_case     , snake_case				:    Tuple           =	probs.topk(A     )
         else:
            raise ValueError(f"""Unsupported framework: {self.framework}"""     )

         snake_case				:    List[Any]           =	scores.tolist()
         snake_case				:    str           =	ids.tolist()
         return [{"score": score, "label": self.model.config.idalabel[_id]} for score, _id in zip(A    ,				A     )]





