如何从谷歌视觉文本检测API获得批量响应？

有关于公共文档中对Google文本检测API的批量请求的信息。

在文档中，您可以找到一些用python编写的示例，您可以使用这些示例进行批处理请求，每批限制为2000个文件：

from google.cloud import vision_v1 from google.cloud.vision_v1 import enums import six

def sample_async_batch_annotate_images(input_image_uri, output_uri): """Perform async batch image annotation"""

client = vision_v1.ImageAnnotatorClient()

# input_image_uri = 'gs://cloud-samples-data/vision/label/wakeupcat.jpg' # output_uri = 'gs://your-bucket/prefix/'

if isinstance(input_image_uri, six.binary_type): input_image_uri = input_image_uri.decode('utf-8') if isinstance(output_uri, six.binary_type): output_uri = output_uri.decode('utf-8') source = {'image_uri': input_image_uri} image = {'source': source} type_ = enums.Feature.Type.LABEL_DETECTION features_element = {'type': type_} type_2 = enums.Feature.Type.IMAGE_PROPERTIES features_element_2 = {'type': type_2} features = [features_element, features_element_2] requests_element = {'image': image, 'features': features} requests = [requests_element] gcs_destination = {'uri': output_uri}

# The max number of responses to output in each JSON file batch_size = 2 output_config = {'gcs_destination': gcs_destination, 'batch_size': batch_size}

operation = client.async_batch_annotate_images(requests, output_config)

print('Waiting for operation to complete...') response = operation.result()

# The output is written to GCS with the provided output_uri as prefix gcs_output_uri = response.output_config.gcs_destination.uri print('Output written to GCS with prefix: {}'.format(gcs_output_uri)) 在示例代码中，您还可以找到执行批处理请求时可以获得的输出样本。