Removing accents and diacritics from a word

[Asmus Freytag via Unicode]

A question has come up in another context: Is there any linguistic term for describing the process of removing accents and diacritics from a word to create its “base form”, e.g. São Tomé to Sao Tome? The linguistic term "string normalization" appears not that preferable in a computing context. Any ideas? A./