TY - CONF AU - Jialuo Chen AU - Mohamed Ali Souibgui AU - Alicia Fornes AU - Beata Megyesi A2 - HistoCrypt PY - 2021// TI - Unsupervised Alphabet Matching in Historical Encrypted Manuscript Images BT - 4th International Conference on Historical Cryptology SP - 34 EP - 37 N2 - Historical ciphers contain a wide range ofsymbols from various symbol sets. Iden-tifying the cipher alphabet is a prerequi-site before decryption can take place andis a time-consuming process. In this workwe explore the use of image processing foridentifying the underlying alphabet in ci-pher images, and to compare alphabets be-tween ciphers. The experiments show thatciphers with similar alphabets can be suc-cessfully discovered through clustering. L1 - http://refbase.cvc.uab.es/files/CSF2021.pdf N1 - DAG; 602.230; 600.140; 600.121 ID - Jialuo Chen2021 ER -