Results locale from Cloud Vision API using TEXT_DE

Question

I'm using npm node-cloud-vision-api

API correctly detects language of the document but the results characters are returned in western character subset not corresponding to a locale. I assume they should be returned in UTF-8 characters but all the locale specific characters are mapped into basic western character subset.

For example:

Wartosc is return insted of Wartość

How to instruct the API to return correct UTF-8 characters?

Answer 1

Have you tried passing in a language hint to the OCR Detection call. Please follow the below API Reference. https://cloud.google.com/vision/reference/rest/v1/images/annotate#AnnotateImageRequest

Answer 2

As written here it is a known issue with the Cloud Vision API when you don't use language hints.

You can see the actual bug report here.