Add text-recognition features to your app using the Vision framework.
If not otherwise specified, Vision biases its results toward English. To alter its default behavior, provide an array of supported languages in the request’s recognitionLanguages property. The order in which you provide the languages dictates their relative importance. To recognize traditional and simplified Chinese, specify zh-Hant and zh-Hans as the first elements in the request’s recognitionLanguages property. English is the only other language that you can pair with Chinese.