test_cloudvolume.py 文件源码

python
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项目:cloud-volume 作者: seung-lab 项目源码 文件源码
def test_non_aligned_read():
    delete_layer()
    cv, data = create_layer(size=(128,64,64,1), offset=(0,0,0))

    # the last dimension is the number of channels
    assert cv[31:65,0:64,0:64].shape == (34,64,64,1) 
    assert np.all(cv[31:65,0:64,0:64] == data[31:65,:64,:64,:])

    # read a single pixel
    delete_layer()
    cv, data = create_layer(size=(64,64,64,1), offset=(0,0,0))
    # the last dimension is the number of channels
    assert cv[22:23,22:23,22:23].shape == (1,1,1,1) 
    assert np.all(cv[22:23,22:23,22:23] == data[22:23,22:23,22:23,:])

    # Test steps (negative steps are not supported)
    img1 = cv[::2, ::2, ::2, :]
    img2 = cv[:, :, :, :][::2, ::2, ::2, :]
    assert np.array_equal(img1, img2)
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