def _find_l1_phash_mul(cdict):
candidate_lengths = _find_candidate_lengths_mul(cdict.tuple2int)
for p in candidate_lengths:
hash_f = hashmul.hashmul_t(p)
if hash_f.is_perfect(iter(cdict.tuple2int.values())):
return l1_phash_t(cdict, hash_f)
del hash_f
return None
def _find_l2_hash_mul(cdict):
"""Similar to the _find_l1_phash_mul, but not looking for perfection, just
well distributed stuff"""
global _l1_bucket_max
candidate_lengths = _find_candidate_lengths_mul(cdict.tuple2int)
for p in candidate_lengths:
hash_f = hashmul.hashmul_t(p)
if xedhash.is_well_distributed(cdict.tuple2int, hash_f, _l1_bucket_max):
return hash_f
del hash_f
return None