我们正在尝试使用 google-cloud-vision API 从图像中提取文本：
import io
import os
from google.oauth2 import service_account
from google.cloud import vision
# The name of the image file to annotate (Change the line below 'image_path.jpg' ******)
path = os.path.join(os.path.dirname(__file__), '3.jpg') # Your image path from current directory
client = vision.ImageAnnotatorClient()
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(format(text.description))
在这段代码中，我们需要让 API 仅通过“cv2”函数读取图像，而不是使用“io”函数：
# Read image file
with io.open(img_path, 'rb') as image_file: …