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| |�}z|jW S ty1 | Y S w )a1 82 Returns the result of an image function.83 84 :py:mod:`~PIL.ImageMath` only supports single-layer images. To process multi-band85 images, use the :py:meth:`~PIL.Image.Image.split` method or86 :py:func:`~PIL.Image.merge` function.87 88 :param expression: A function that receives a dictionary.89 :param **kw: Values to add to the function's dictionary.90 :return: The expression result. This is usually an image object, but can91 also be an integer, a floating point value, or a pixel tuple,92 depending on the expression.93 ) �ops�copy�update�itemsr r r r94 r* )r� r� �args�k�vr0 r r r � lambda_eval� s 95 � �r� c s� t �� � |D ]}d|v stt|�rd|� d�}t|��q� �|� � �� D ]\}}t|tj�r5t |�� |< q%t96| dd��d� ��fd97d � ���� t� | d d
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W S tyc | Y S w )a- 98 Evaluates an image expression. This uses Python's ``eval()`` function to process99 the expression string, and carries the security risks of doing so. It is not100 recommended to process expressions without considering this.101 :py:meth:`~lambda_eval` is a more secure alternative.102 103 :py:mod:`~PIL.ImageMath` only supports single-layer images. To process multi-band104 images, use the :py:meth:`~PIL.Image.Image.split` method or105 :py:func:`~PIL.Image.merge` function.106 107 :param expression: A string containing a Python-style expression.108 :param **kw: Values to add to the evaluation context.109 :return: The evaluated expression. This is usually an image object, but can110 also be an integer, a floating point value, or a pixel tuple,111 depending on the expression.112 �__r' �
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