Google视觉文本检测api在哪里使用语言提示？

Question

所以我知道google-vision api支持多种语言进行文本检测。通过使用下面的代码，我可以从图像中检测英语。但是根据谷歌，我可以使用参数语言提示来检测其他语言。那么，我到底想把这个参数放在下面的代码中吗？

def detect_text(path):
    """Detects text in the file."""
    from google.cloud import vision
    imageContext = 'bn'
    client = vision.ImageAnnotatorClient(imageContext)

    with io.open(path, 'rb') as image_file:
        content = image_file.read()

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

    response = client.text_detection(image=image)
    texts = response.text_annotations
    print('Texts:')

    for text in texts:
        print('\n"{}"'.format(text.description))

        vertices = (['({},{})'.format(vertex.x, vertex.y)
                    for vertex in text.bounding_poly.vertices])

        print('bounds: {}'.format(','.join(vertices)))


detect_text('Outline-of-the-Bangladesh-license-plates_Q320.jpg')

Answer 1

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有关更多详细信息，请参见"ImageContext"。