issues: 216621142

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
216621142 MDU6SXNzdWUyMTY2MjExNDI= 1323 Image related methods 6815844 closed 0     9 2017-03-24T01:39:52Z 2020-10-08T16:00:18Z 2020-06-21T19:25:18Z MEMBER      

Currently I'm using xarray to handle multiple images (typically, a sequence of images), and I feel it would be convenient if xarray supports image related functions.

There may be many possibilities, but particular methods I want to have in xarray are 1. xr.open_image(File)
Currently, I open image by PILLOW, convert to np.ndarray, extract its attributes, then construct xr.DataArray from them. If I can do it by 1 line, it would be very great.

  1. xr.DataArray.expand_dims(dim) I want to add additional channel dimension to grey scale images (size [W x H] -> [W x H x 1]), in order to pass them into convolutional neural network, which usually accepts 4-dimensional tensor [Batch x W x H x channel].

Image (possibly also video?) is naturally high-dimensional and I guess it would fit xarray's concept. Is this sufficiently broad interest?

 
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