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mboyanov/alpha_copy.py

Created January 30, 2018 18:02
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  1. mboyanov created this gist Jan 30, 2018.
    7 changes: 7 additions & 0 deletions alpha_copy.py
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,7 @@
    def copy_alpha(source, target):
    new_shape = np.copy(target.shape)
    new_shape[2] = 4
    fourd = np.zeros(new_shape, dtype=np.uint8)
    fourd[:, :, 3] = source[:, :, 3] # copy the alpha channel
    fourd[:, :, :3] = target[:, :, :3] #copy the content
    return fourd