ccd : CCDData
Data to be flatfield corrected
flat : CCDData
Flatfield to apply to the data
min_value : None or float
Minimum value for flat field. The value can either be None and no
minimum value is applied to the flat or specified by a float which
will replace all values in the flat by the min_value.
add_keyword : str, Keyword or dict-like, optional
Item(s) to add to metadata of result. Set to None to completely
disable logging. Default is to add a dictionary with a single item:
the key is the name of this function and the value is a string
containing the arguments the function was called with, except the
value of this argument.
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