Question

我将使用Google Cloud Vision API。

在教程中，它说我需要将图像发送到他们的Google云端存储，然后使用该链接我需要向API发出请求。所以这个计划看起来像这样：

手机照片（本地存储） - 下载 - ＆gt; GC存储 - 目标链接 - ＆gt; 通过此链接发送请求到GC Vision API --get JSON - ＆gt;使用JSON

所以问题是。在云中存储图像需要什么？仅限链接？我是否可以在没有GC存储的情况下将图像直接发送到Vision API？所以方案：

手机照片（本地存储） - 下载 - ＆gt;到GC Vision API --get JSON - ＆gt;使用JSON

Answer 1

是的，您可以将图像直接发送到vision API，如下所示：

package code.logicbeat.vision.controller;

import java.util.Collections;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StreamUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import com.google.cloud.vision.v1.AnnotateImageRequest;
import com.google.cloud.vision.v1.AnnotateImageResponse;
import com.google.cloud.vision.v1.BatchAnnotateImagesResponse;
import com.google.cloud.vision.v1.EntityAnnotation;
import com.google.cloud.vision.v1.Feature;
import com.google.cloud.vision.v1.Image;
import com.google.cloud.vision.v1.ImageAnnotatorClient;
import com.google.protobuf.ByteString;
@RestController
public class VisionController {

    @Autowired
    private ImageAnnotatorClient imageAnnotatorClient;

    @PostMapping("/vision")
    public String uploadImage(@RequestParam("file") MultipartFile file) throws Exception {

        byte[] imageBytes = StreamUtils.copyToByteArray(file.getInputStream());
        Image image = Image.newBuilder().setContent(ByteString.copyFrom(imageBytes)).build();

        // Sets the type of request to label detection, to detect broad sets of
        // categories in an image.
        Feature feature = Feature.newBuilder().setType(Feature.Type.LABEL_DETECTION).build();
        AnnotateImageRequest request = AnnotateImageRequest.newBuilder().setImage(image).addFeatures(feature).build();
        BatchAnnotateImagesResponse responses = this.imageAnnotatorClient
            .batchAnnotateImages(Collections.singletonList(request));
        StringBuilder responseBuilder = new StringBuilder("<table border=\"1\">");
        responseBuilder.append("<tr><th>description</th><th>score</th></tr>");
        // We're only expecting one response.
        if (responses.getResponsesCount() == 1) {
            AnnotateImageResponse response = responses.getResponses(0);
            if (response.hasError()) {
                System.out.println(response.getError());
                throw new Exception(response.getError().getMessage());
            }

            for (EntityAnnotation annotation : response.getLabelAnnotationsList()) {
                responseBuilder.append("<tr><td>").append(annotation.getDescription()).append("</td><td>")
                    .append(annotation.getScore()).append("</td></tr>");
            }
        }
        responseBuilder.append("</table>");
        return responseBuilder.toString();
    }
}

请查看我的回购示例的链接以供参考： https://github.com/logicbeat/googlevisionapidemo

另外，您可以查看以下链接： https://github.com/GoogleCloudPlatform/java-docs-samples/blob/master/vision/label/src/main/java/com/google/cloud/vision/samples/label/LabelApp.java

我如何将图像发送到GCP Vision API

1 个答案: