def skyimg2plarr(img):
    """
    Returns CASA image with directory name img as a matplotlib array suitable
    for plotting, followed by the maximum and minimum pixel values.
    """
    ia.open(img)
    stats = ia.statistics()
    data_array=ia.getchunk([-1,-1,1,1],[-1,-1,1,1],[1],[],True,True,False)
    data_array=pl.array(data_array)
    tdata_array=pl.transpose(data_array)
    ttrans_array=tdata_array.tolist()
    ttrans_array.reverse()
    ia.close()
    return ttrans_array, float(stats['max']), float(stats['min'])