def cl_bithash_str(cY, cCb, cCr): return histogram_hash_string( numpy.concatenate( cY, cCb, cCr).astype('double'))
def oh_bithash_str(histogram): return histogram_hash_string(histogram.astype("double"))
def edge_histo_bithash_str(histogram): return histogram_hash_string( histogram.astype('double'))