百度AI接口---身份证识别Demo

题记：自己是做java web的，但是本人以前接触并学习很多图像的知识，所以对图像很敏感。下面以百度的一个接口，实现身份证识别案例

1、需要百度开发者AppID、SecretKey 、API Key。

先注册，然后进入https://console.bce.baidu.com/ai/?fromai=1#/ai/ocr/overview/index，这个网址，选择文字识别，创建应用，获取AppID、SecretKey 、API Key。

2、创建一个maven项目，pom.xml如下：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.fx</groupId>
  <artifactId>demo</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>demo Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
            <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
    </dependency>

    <!-- 百度文字识别SDK -->
    <dependency>
        <groupId>com.baidu.aip</groupId>
        <artifactId>java-sdk</artifactId>
        <version>4.6.1</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>demo</finalName>
  </build>
</project>

3、创建BaiduConfig.java、demo.java、Utils.java

package com.fx.config;
public class BaiduConfig {
    public static final String APP_ID = "***";//自己的
    public static final String API_KEY = "****";//自己的
    public static final String SECRET_KEY = "***";//自己的

}

package com.fx.demo;

import java.util.HashMap;
import org.json.JSONObject;
import com.baidu.aip.ocr.AipOcr;
import com.fx.config.BaiduConfig;
import com.fx.utils.Utils;

public class demo {

     //设置APPID/AK/SK
    public static void main(String[] args) {
        IDCardRecogize();

    }
   public static void IDCardRecogize() {
       AipOcr client = new AipOcr(BaiduConfig.APP_ID, BaiduConfig.API_KEY, BaiduConfig.SECRET_KEY);
    // 传入可选参数调用接口
        HashMap<String, String> options = new HashMap<String, String>();
        options.put("detect_direction", "true");
        options.put("detect_risk", "false");
        //背面照
        //String idCardSide = "back";

        //前面照
        String idCardSide = "front";

        // 参数为本地图片路径
        //String image = "D:\\back.jpg";
        //String image = "D:\\front.jpg";
       String image = "F:\\picture\\shenfenzheng.jpg";//身份证照片路径
        JSONObject res = client.idcard(image, idCardSide, options);
        System.out.println(res.toString(2));

        // 参数为本地图片二进制数组
        byte[] file = Utils.readImageFile(image);
        res = client.idcard(file, idCardSide, options);
        System.out.println(res.toString(2));

   }

}

package com.fx.utils;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

import javax.imageio.stream.FileImageInputStream;

public class Utils {

    /**
        将图像转为二进制数组
   * @param path
   * @return
   */
  public static byte[] readImageFile(String path){
        byte[] data = null;
        FileImageInputStream input = null;
        try {
          input = new FileImageInputStream(new File(path));
          ByteArrayOutputStream output = new ByteArrayOutputStream();
          byte[] buf = new byte[1024];
          int numBytesRead = 0;
          while ((numBytesRead = input.read(buf)) != -1) {
          output.write(buf, 0, numBytesRead);
          }
          data = output.toByteArray();
          output.close();
          input.close();
        }
        catch (FileNotFoundException ex1) {
          ex1.printStackTrace();
        }
        catch (IOException ex1) {
          ex1.printStackTrace();
        }
        return data;
      }
}

这样就可以了，直接运行吧！不懂的或者报错的，可以留言........。