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Module « matplotlib.pyplot »

Fonction imread - module matplotlib.pyplot

Signature de la fonction imread

def imread(fname: 'str | pathlib.Path | BinaryIO', format: 'str | None' = None) -> 'np.ndarray' 

Description

help(matplotlib.pyplot.imread)

Read an image from a file into an array.

.. note::

    This function exists for historical reasons.  It is recommended to
    use `PIL.Image.open` instead for loading images.

Parameters
----------
fname : str or file-like
    The image file to read: a filename, a URL or a file-like object opened
    in read-binary mode.

    Passing a URL is deprecated.  Please open the URL
    for reading and pass the result to Pillow, e.g. with
    ``np.array(PIL.Image.open(urllib.request.urlopen(url)))``.
format : str, optional
    The image file format assumed for reading the data.  The image is
    loaded as a PNG file if *format* is set to "png", if *fname* is a path
    or opened file with a ".png" extension, or if it is a URL.  In all
    other cases, *format* is ignored and the format is auto-detected by
    `PIL.Image.open`.

Returns
-------
`numpy.array`
    The image data. The returned array has shape

    - (M, N) for grayscale images.
    - (M, N, 3) for RGB images.
    - (M, N, 4) for RGBA images.

    PNG images are returned as float arrays (0-1).  All other formats are
    returned as int arrays, with a bit depth determined by the file's
    contents.

Notes
-----

.. note::

    This is equivalent to `matplotlib.image.imread`.

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