venabled

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import dask.array as da
import numpy as np
import argparse
from skimage.transform import resize, pyramids
import h5py

venabled

---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-289-233f4f2e1f24> in <module>()
      3 dimg = da.from_array(img, chunks=chunkshape)
      4 gray = dimg.map_blocks(lambda arr: arr.mean(axis=2), chunks=(256, 256))
----> 5 grayimg = gray.compute()

/Users/venabled/anaconda/lib/python2.7/site-packages/dask/array/core.pyc in compute(self, **kwargs)
    721     @wraps(compute)
    722     def compute(self, **kwargs):