Document Text Detection Google Vision API English Language Only

[SAK1]

Hi All,

I am using Google Vision API Document Text Detection for OCR to extract serial Numbers from an Image. The Serial Number contains only numbers and english alphabets. I have already set language Hint as English. However the extracted texts sometimes contains texts from other langugages such as "BKO" in Turkish or Cyrril language.  The Code snippet is given below:

            success, encoded_image = cv2.imencode('.jpg', crop_img1)

            content = encoded_image.tobytes()

            image = vision_v1.types.Image(content=content)

            image_context = vision_v1.ImageContext(language_hints=["en"])

            status_label.config(text="Extracting Texts")

            response = client.document_text_detection(image=image)

            texts = response.text_annotations

Is there a way I can tell Google Vision API that the text you are extracting is from English, You should not look for other languages.