cv2.imread不能正常读取gif格式图片
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2022-05-16 11:20:38
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Python中cv2模块的imread函数呆以正常读取'jpg','png'格式的图片,但是不能处理'gif'图片。可以改用imageio模块来处理。
import cv2
import imageio
def readImg(im_fn):
im = cv2.imread(im_fn)
if im is None :
print('{} cv2.imread failed'.format(im_fn))
tmp = imageio.mimread(im_fn)
if tmp is not None:
imt = np.array(tmp)
imt = imt[0]
im = imt[:,:,0:3]
return im
help(imageio.mimread)
mimread(uri, format=None, memtest=True, **kwargs)
mimread(uri, format=None, memtest=True, **kwargs)
#可以同时读取多个文件,返回num arrays列表
Reads multiple images from the specified file. Returns a list of
numpy arrays, each with a dict of meta data at its 'meta' attribute.
Parameters
----------
uri : {str, bytes, file}
The resource to load the images from, e.g. a filename, http address or
file object, see the docs for more info.
format : str
The format to use to read the file. By default imageio selects
the appropriate for you based on the filename and its contents.
memtest : bool
If True (default), this function will raise an error if the
resulting list of images consumes over 256 MB of memory. This
is to protect the system using so much memory that it needs to
resort to swapping, and thereby stall the computer. E.g.
``mimread('hunger_games.avi')``.
kwargs : ...
Further keyword arguments are passed to the reader. See :func:`.help`
to see what arguments are available for a particular format.