Padding¶

cupy.pad(array, pad_width, mode, **keywords)[source]¶

Returns padded array. You can specify the padded widths and values.

This function currently supports only mode=constant .

Parameters:	array (array-like) – Input array of rank N. pad_width (int or array-like) – Number of values padded to the edges of each axis. ((before_1, after_1), ... (before_N, after_N)) uniquely pad widths for each axis. ((before, after),) yields same before and after pad for each axis. (pad,) or int is a shortcut for before = after = pad width for all axes. You cannot specify `cupy.ndarray` . mode (str) – ‘constant’ Pads with a constant values. constant_values (int or array-like) – Used in `constant`. The values are padded for each axis. ((before_1, after_1), ... (before_N, after_N)) uniquely pad constants for each axis. ((before, after),) yields same before and after constants for each axis. (constant,) or int is a shortcut for before = after = constant for all axes. Default is 0. You cannot specify `cupy.ndarray` .
Returns:	Padded array of rank equal to `array` with shape increased according to `pad_width` .
Return type:	cupy.ndarray