Module block_hash

Utilities related to block hash part of the fuzzy hash.

See also: “Block Hashes” section of FuzzyHashData

Structs

• IndexWindows
  Numeric windows of a block hash, each value representing unique value corresponding a substring of length MIN_LCS_FOR_COMPARISON and the block size.
• NumericWindows
  Numeric windows of a block hash, each value representing unique value corresponding a substring of length MIN_LCS_FOR_COMPARISON.

Constants

• ALPHABET_SIZE
  The number of alphabets used in the block hash part of a fuzzy hash.
• FULL_SIZE
  The maximum size of the block hash.
• HALF_SIZE
  The half (truncated) size of the block hash.
• MAX_SEQUENCE_SIZE
  The maximum size of the sequence so that the same character can be repeated in a normalized block hash.
• MIN_LCS_FOR_COMPARISON
  The minimum length of the common substring to compute edit distance between two block hashes.