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# scipy.ndimage.zoom

`scipy.ndimage.``zoom`(input, zoom, output=None, order=3, mode='constant', cval=0.0, prefilter=True)

  Zoom an array.

  The array is zoomed using spline interpolation of the requested order.

  Parameters: | input : ndarray The input array. zoom : float or sequence, optional The zoom factor along the axes. If a float, `zoom` is the same for each axis. If a sequence, `zoom` should contain one value for each axis. output : ndarray or dtype, optional The array in which to place the output, or the dtype of the returned array. order : int, optional The order of the spline interpolation, default is 3. The order has to be in the range 0-5. mode : str, optional Points outside the boundaries of the input are filled according to the given mode (‘constant’, ‘nearest’, ‘reflect’, ‘mirror’ or ‘wrap’). Default is ‘constant’. cval : scalar, optional Value used for points outside the boundaries of the input if `mode='constant'`. Default is 0.0 prefilter : bool, optional The parameter prefilter determines if the input is pre-filtered with `spline_filter` before interpolation (necessary for spline interpolation of order > 1). If False, it is assumed that the input is already filtered. Default is True.
  Returns: | zoom : ndarray or None The zoomed input. If output is given as a parameter, None is returned.