印刷文字识别-身份证
Posted gynbk
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了印刷文字识别-身份证相关的知识，希望对你有一定的参考价值。
公司要求作身份证识别，一开始在网上搜索java方面有Tesseract-OCR的开源技术识别率可以达到99.99%。但真正接触下来，是说这个技术识别率可以达到99.99%，但需要大量的训练数据，也就是人工智能那一套。搞了半天根本达不到理想要求。那有没有其他办法那，查找了下中国的3大巨头公司阿里，腾讯、百度都有提供身份证识别接口。那就走调用第三方的方法吧。我选择了阿里。
前提：
1、需要申请一个阿里账号，有淘宝号的用淘宝号登录也可以。
2、然后在云市场搜索“印刷文字识别-身份证”。
3、阿里免费提供500次识别。需要购买该产品。
4、产品购买成功后，获取appcode值，这个要放到header中去的。
5、就可调用用了。
需要的jar包：
Maven项目直接配置依赖就可以，非maven项目就需要导入jar包：
Commons-lang-2.4.jar、fastjson-1.2.7.jar、httpclient-4.5.6.jar、httpcode-4.4.10.jar、servlet-api.jar基本这几个就够用了。
官方文档：https://market.aliyun.com/products/57124001/cmapi010401.html?spm=5176.730005.productlist.d_cmapi010401.stMjsY#sku=yuncode440100000
其他的不说调用代码如下：
1 import java.io.UnsupportedEncodingException; 2 import java.net.URLEncoder; 3 import java.security.KeyManagementException; 4 import java.security.NoSuchAlgorithmException; 5 import java.security.cert.X509Certificate; 6 import java.util.ArrayList; 7 import java.util.List; 8 import java.util.Map; 9 10 import javax.net.ssl.SSLContext; 11 import javax.net.ssl.TrustManager; 12 import javax.net.ssl.X509TrustManager; 13 14 import org.apache.commons.lang.StringUtils; 15 import org.apache.http.HttpResponse; 16 import org.apache.http.NameValuePair; 17 import org.apache.http.client.HttpClient; 18 import org.apache.http.client.entity.UrlEncodedFormEntity; 19 import org.apache.http.client.methods.HttpDelete; 20 import org.apache.http.client.methods.HttpGet; 21 import org.apache.http.client.methods.HttpPost; 22 import org.apache.http.client.methods.HttpPut; 23 import org.apache.http.conn.ClientConnectionManager; 24 import org.apache.http.conn.scheme.Scheme; 25 import org.apache.http.conn.scheme.SchemeRegistry; 26 import org.apache.http.conn.ssl.SSLSocketFactory; 27 import org.apache.http.entity.ByteArrayEntity; 28 import org.apache.http.entity.StringEntity; 29 import org.apache.http.impl.client.DefaultHttpClient; 30 import org.apache.http.message.BasicNameValuePair; 31 32 public class HttpUtils { 33 34 /** 35 * get 36 * 37 * @param host 38 * @param path 39 * @param method 40 * @param headers 41 * @param querys 42 * @return 43 * @throws Exception 44 */ 45 public static HttpResponse doGet(String host, String path, String method, 46 Map<String, String> headers, 47 Map<String, String> querys) 48 throws Exception { 49 HttpClient httpClient = wrapClient(host); 50 51 HttpGet request = new HttpGet(buildUrl(host, path, querys)); 52 for (Map.Entry<String, String> e : headers.entrySet()) { 53 request.addHeader(e.getKey(), e.getValue()); 54 } 55 56 return httpClient.execute(request); 57 } 58 59 /** 60 * post form 61 * 62 * @param host 63 * @param path 64 * @param method 65 * @param headers 66 * @param querys 67 * @param bodys 68 * @return 69 * @throws Exception 70 */ 71 public static HttpResponse doPost(String host, String path, String method, 72 Map<String, String> headers, 73 Map<String, String> querys, 74 Map<String, String> bodys) 75 throws Exception { 76 HttpClient httpClient = wrapClient(host); 77 78 HttpPost request = new HttpPost(buildUrl(host, path, querys)); 79 for (Map.Entry<String, String> e : headers.entrySet()) { 80 request.addHeader(e.getKey(), e.getValue()); 81 } 82 83 if (bodys != null) { 84 List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>(); 85 86 for (String key : bodys.keySet()) { 87 nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key))); 88 } 89 UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8"); 90 formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8"); 91 request.setEntity(formEntity); 92 } 93 94 return httpClient.execute(request); 95 } 96 97 /** 98 * Post String 99 * 100 * @param host 101 * @param path 102 * @param method 103 * @param headers 104 * @param querys 105 * @param body 106 * @return 107 * @throws Exception 108 */ 109 public static HttpResponse doPost(String host, String path, String method, 110 Map<String, String> headers, 111 Map<String, String> querys, 112 String body) 113 throws Exception { 114 HttpClient httpClient = wrapClient(host); 115 116 HttpPost request = new HttpPost(buildUrl(host, path, querys)); 117 for (Map.Entry<String, String> e : headers.entrySet()) { 118 request.addHeader(e.getKey(), e.getValue()); 119 } 120 121 if (StringUtils.isNotBlank(body)) { 122 request.setEntity(new StringEntity(body, "utf-8")); 123 } 124 125 return httpClient.execute(request); 126 } 127 128 /** 129 * Post stream 130 * 131 * @param host 132 * @param path 133 * @param method 134 * @param headers 135 * @param querys 136 * @param body 137 * @return 138 * @throws Exception 139 */ 140 public static HttpResponse doPost(String host, String path, String method, 141 Map<String, String> headers, 142 Map<String, String> querys, 143 byte[] body) 144 throws Exception { 145 HttpClient httpClient = wrapClient(host); 146 147 HttpPost request = new HttpPost(buildUrl(host, path, querys)); 148 for (Map.Entry<String, String> e : headers.entrySet()) { 149 request.addHeader(e.getKey(), e.getValue()); 150 } 151 152 if (body != null) { 153 request.setEntity(new ByteArrayEntity(body)); 154 } 155 156 return httpClient.execute(request); 157 } 158 159 /** 160 * Put String 161 * @param host 162 * @param path 163 * @param method 164 * @param headers 165 * @param querys 166 * @param body 167 * @return 168 * @throws Exception 169 */ 170 public static HttpResponse doPut(String host, String path, String method, 171 Map<String, String> headers, 172 Map<String, String> querys, 173 String body) 174 throws Exception { 175 HttpClient httpClient = wrapClient(host); 176 177 HttpPut request = new HttpPut(buildUrl(host, path, querys)); 178 for (Map.Entry<String, String> e : headers.entrySet()) { 179 request.addHeader(e.getKey(), e.getValue()); 180 } 181 182 if (StringUtils.isNotBlank(body)) { 183 request.setEntity(new StringEntity(body, "utf-8")); 184 } 185 186 return httpClient.execute(request); 187 } 188 189 /** 190 * Put stream 191 * @param host 192 * @param path 193 * @param method 194 * @param headers 195 * @param querys 196 * @param body 197 * @return 198 * @throws Exception 199 */ 200 public static HttpResponse doPut(String host, String path, String method, 201 Map<String, String> headers, 202 Map<String, String> querys, 203 byte[] body) 204 throws Exception { 205 HttpClient httpClient = wrapClient(host); 206 207 HttpPut request = new HttpPut(buildUrl(host, path, querys)); 208 for (Map.Entry<String, String> e : headers.entrySet()) { 209 request.addHeader(e.getKey(), e.getValue()); 210 } 211 212 if (body != null) { 213 request.setEntity(new ByteArrayEntity(body)); 214 } 215 216 return httpClient.execute(request); 217 } 218 219 /** 220 * Delete 221 * 222 * @param host 223 * @param path 224 * @param method 225 * @param headers 226 * @param querys 227 * @return 228 * @throws Exception 229 */ 230 public static HttpResponse doDelete(String host, String path, String method, 231 Map<String, String> headers, 232 Map<String, String> querys) 233 throws Exception { 234 HttpClient httpClient = wrapClient(host); 235 236 HttpDelete request = new HttpDelete(buildUrl(host, path, querys)); 237 for (Map.Entry<String, String> e : headers.entrySet()) { 238 request.addHeader(e.getKey(), e.getValue()); 239 } 240 241 return httpClient.execute(request); 242 } 243 244 private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException { 245 StringBuilder sbUrl = new StringBuilder(); 246 sbUrl.append(host); 247 if (!StringUtils.isBlank(path)) { 248 sbUrl.append(path); 249 } 250 if (null != querys) { 251 StringBuilder sbQuery = new StringBuilder(); 252 for (Map.Entry<String, String> query : querys.entrySet()) { 253 if (0 < sbQuery.length()) { 254 sbQuery.append("&"); 255 } 256 if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) { 257 sbQuery.append(query.getValue()); 258 } 259 if (!StringUtils.isBlank(query.getKey())) { 260 sbQuery.append(query.getKey()); 261 if (!StringUtils.isBlank(query.getValue())) { 262 sbQuery.append("="); 263 sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8")); 264 } 265 } 266 } 267 if (0 < sbQuery.length()) { 268 sbUrl.append("?").append(sbQuery); 269 } 270 } 271 272 return sbUrl.toString(); 273 } 274 275 private static HttpClient wrapClient(String host) { 276 HttpClient httpClient = new DefaultHttpClient(); 277 if (host.startsWith("https://")) { 278 sslClient(httpClient); 279 } 280 281 return httpClient; 282 } 283 284 private static void sslClient(HttpClient httpClient) { 285 try { 286 SSLContext ctx = SSLContext.getInstance("TLS"); 287 X509TrustManager tm = new X509TrustManager() { 288 public X509Certificate[] getAcceptedIssuers() { 289 return null; 290 } 291 public void checkClientTrusted(X509Certificate[] xcs, String str) { 292 293 } 294 public void checkServerTrusted(X509Certificate[] xcs, String str) { 295 296 } 297 }; 298 ctx.init(null, new TrustManager[] { tm }, null); 299 SSLSocketFactory ssf = new SSLSocketFactory(ctx); 300 ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER); 301 ClientConnectionManager ccm = httpClient.getConnectionManager(); 302 SchemeRegistry registry = ccm.getSchemeRegistry(); 303 registry.register(new Scheme("https", 443, ssf)); 304 } catch (KeyManagementException ex) { 305 throw new RuntimeException(ex); 306 } catch (NoSuchAlgorithmException ex) { 307 throw new RuntimeException(ex); 308 } 309 } 310 }
调用的工具累HttpUtils：
1 import java.io.UnsupportedEncodingException; 2 import java.net.URLEncoder; 3 import java.security.KeyManagementException; 4 import java.security.NoSuchAlgorithmException; 5 import java.security.cert.X509Certificate; 6 import java.util.ArrayList; 7 import java.util.List; 8 import java.util.Map; 9 10 import javax.net.ssl.SSLContext; 11 import javax.net.ssl.TrustManager; 12 import javax.net.ssl.X509TrustManager; 13 14 import org.apache.commons.lang.StringUtils; 15 import org.apache.http.HttpResponse; 16 import org.apache.http.NameValuePair; 17 import org.apache.http.client.HttpClient; 18 import org.apache.http.client.entity.UrlEncodedFormEntity; 19 import org.apache.http.client.methods.HttpDelete; 20 import org.apache.http.client.methods.HttpGet; 21 import org.apache.http.client.methods.HttpPost; 22 import org.apache.http.client.methods.HttpPut; 23 import org.apache.http.conn.ClientConnectionManager; 24 import org.apache.http.conn.scheme.Scheme; 25 import org.apache.http.conn.scheme.SchemeRegistry; 26 import org.apache.http.conn.ssl.SSLSocketFactory; 27 import org.apache.http.entity.ByteArrayEntity; 28 import org.apache.http.entity.StringEntity; 29 import org.apache.http.impl.client.DefaultHttpClient; 30 import org.apache.http.message.BasicNameValuePair; 31 32 public class HttpUtils { 33 34 /** 35 * get 36 * 37 * @param host 38 * @param path 39 * @param method 40 * @param headers 41 * @param querys 42 * @return 43 * @throws Exception 44 */ 45 public static HttpResponse doGet(String host, String path, String method, 46 Map<String, String> headers, 47 Map<String, String> querys) 48 throws Exception { 49 HttpClient httpClient = wrapClient(host); 50 51 HttpGet request = new HttpGet(buildUrl(host, path, querys)); 52 for (Map.Entry<String, String> e : headers.entrySet()) { 53 request.addHeader(e.getKey(), e.getValue()); 54 } 55 56 return httpClient.execute(request); 57 } 58 59 /** 60 * post form 61 * 62 * @param host 63 * @param path 64 * @param method 65 * @param headers 66 * @param querys 67 * @param bodys 68 * @return 69 * @throws Exception 70 */ 71 public static HttpResponse doPost(String host, String path, String method, 72 Map<String, String> headers, 73 Map<String, String> querys, 74 Map<String, String> bodys) 75 throws Exception { 76 HttpClient httpClient = wrapClient(host); 77 78 HttpPost request = new HttpPost(buildUrl(host, path, querys)); 79 for (Map.Entry<String, String> e : headers.entrySet()) { 80 request.addHeader(e.getKey(), e.getValue()); 81 } 82 83 if (bodys != null) { 84 List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>(); 85 86 for (String key : bodys.keySet()) { 87 nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key))); 88 } 89 UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8"); 90 formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8"); 91 request.setEntity(formEntity); 92 } 93 94 return httpClient.execute(request); 95 } 96 97 /** 98 * Post String 99 * 100 * @param host 101 * @param path 102 * @param method 103 * @param headers 104 * @param querys 105 * @param body 106 * @return 107 * @throws Exception 108 */ 109 public static HttpResponse doPost(String host, String path, String method, 110 Map<String, String> headers, 111 Map<String, String> querys, 112 String body) 113 throws Exception { 114 HttpClient httpClient = wrapClient(host); 115 116 HttpPost request = new HttpPost(buildUrl(host, path, querys)); 117 for (Map.Entry<String, String> e : headers.entrySet()) { 118 request.addHeader(e.getKey(), e.getValue()); 119 } 120 121 if (StringUtils.isNotBlank(body)) { 122 request.setEntity(new StringEntity(body, "utf-8")); 123 } 124 125 return httpClient.execute(request); 126 } 127 128 /** 129 * Post stream 130 * 131 * @param host 132 * @param path 133 * @param method 134 * @param headers 135 * @param querys 136 * @param body 137 * @return 138 * @throws Exception 139 */ 140 public static HttpResponse doPost(String host, String path, String method, 141 Map<String, String> headers, 142 Map<String, String> querys, 143 byte[] body) 144 throws Exception { 145 HttpClient httpClient = wrapClient(host); 146 147 HttpPost request = new HttpPost(buildUrl(host, path, querys)); 148 for (Map.Entry<String, String> e : headers.entrySet()) { 149 request.addHeader(e.getKey(), e.getValue()); 150 } 151 152 if (body != null) { 153 request.setEntity(new ByteArrayEntity(body)); 154 } 155 156 return httpClient.execute(request); 157 } 158 159 /** 160 * Put String 161 * @param host 162 * @param path 163 * @param method 164 * @param headers 165 * @param querys 166 * @param body 167 * @return 168 * @throws Exception 169 */ 170 public static HttpResponse doPut(String host, String path, String method, 171 Map<String, String> headers, 172 Map<String, String> querys, 173 String body) 174 throws Exception { 175 HttpClient httpClient = wrapClient(host); 176 177 HttpPut request = new HttpPut(buildUrl(host, path, querys)); 178 for (Map.Entry<String, String> e : headers.entrySet()) { 179 request.addHeader(e.getKey(), e.getValue()); 180 } 181 182 if (StringUtils.isNotBlank(body)) { 183 request.setEntity(new StringEntity(body, "utf-8")); 184 } 185 186 return httpClient.execute(request); 187 } 188 189 /** 190 * Put stream 191 * @param host 192 * @param path 193 * @param method 194 * @param headers 195 * @param querys 196 * @param body 197 * @return 198 * @throws Exception 199 */ 200 public static HttpResponse doPut(String host, String path, String method, 201 Map<String, String> headers, 202 Map<String, String> querys, 203 byte[] body) 204 throws Exception { 205 HttpClient httpClient = wrapClient(host); 206 207 HttpPut request = new HttpPut(buildUrl(host, path, querys)); 208 for (Map.Entry<String, String> e : headers.entrySet()) { 209 request.addHeader(e.getKey(), e.getValue()); 210 } 211 212 if (body != null) { 213 request.setEntity(new ByteArrayEntity(body)); 214 } 215 216 return httpClient.execute(request); 217 } 218 219 /** 220 * Delete 221 * 222 * @param host 223 * @param path 224 * @param method 225 * @param headers 226 * @param querys 227 * @return 228 * @throws Exception 229 */ 230 public static HttpResponse doDelete(String host, String path, String method, 231 Map<String, String> headers, 232 Map<String, String> querys) 233 throws Exception { 234 HttpClient httpClient = wrapClient(host); 235 236 HttpDelete request = new HttpDelete(buildUrl(host, path, querys)); 237 for (Map.Entry<String, String> e : headers.entrySet()) { 238 request.addHeader(e.getKey(), e.getValue()); 239 } 240 241 return httpClient.execute(request); 242 } 243 244 private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException { 245 StringBuilder sbUrl = new StringBuilder(); 246 sbUrl.append(host); 247 if (!StringUtils.isBlank(path)) { 248 sbUrl.append(path); 249 } 250 if (null != querys) { 251 StringBuilder sbQuery = new StringBuilder(); 252 for (Map.Entry<String, String> query : querys.entrySet()) { 253 if (0 < sbQuery.length()) { 254 sbQuery.append("&"); 255 } 256 if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) { 257 sbQuery.append(query.getValue()); 258 } 259 if (!StringUtils.isBlank(query.getKey())) { 260 sbQuery.append(query.getKey()); 261 if (!StringUtils.isBlank(query.getValue())) { 262 sbQuery.append("="); 263 sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8")); 264 } 265 } 266 } 267 if (0 < sbQuery.length()) { 268 sbUrl.append("?").append(sbQuery); 269 } 270 } 271 272 return sbUrl.toString(); 273 } 274 275 private static HttpClient wrapClient(String host) { 276 HttpClient httpClient = new DefaultHttpClient(); 277 if (host.startsWith("https://")) { 278 sslClient(httpClient); 279 } 280 281 return httpClient; 282 } 283 284 private static void sslClient(HttpClient httpClient) { 285 try { 286 SSLContext ctx = SSLContext.getInstance("TLS"); 287 X509TrustManager tm = new X509TrustManager() { 288 public X509Certificate[] getAcceptedIssuers() { 289 return null; 290 } 291 public void checkClientTrusted(X509Certificate[] xcs, String str) { 292 293 } 294 public void checkServerTrusted(X509Certificate[] xcs, String str) { 295 296 } 297 }; 298 ctx.init(null, new TrustManager[] { tm }, null); 299 SSLSocketFactory ssf = new SSLSocketFactory(ctx); 300 ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER); 301 ClientConnectionManager ccm = httpClient.getConnectionManager(); 302 SchemeRegistry registry = ccm.getSchemeRegistry(); 303 registry.register(new Scheme("https", 443, ssf)); 304 } catch (KeyManagementException ex) { 305 throw new RuntimeException(ex); 306 } catch (NoSuchAlgorithmException ex) { 307 throw new RuntimeException(ex); 308 } 309 } 310 }
识别结果正确率已经达到可用。
{"sex":"男","num":"410527**********","birth":"1990**","request_id":"20180801150222_a325b5b8ea94c5c3ab2b7c98310252ef","nationality":"汉","address":"河南省******","name":"***","config_str":"{"side":"face"}","success":true,"face_rect":{"center":{"y":488,"x":1412},"angle":-90,"size":{"height":240,"width":208}}}
以上是关于印刷文字识别-身份证的主要内容，如果未能解决你的问题，请参考以下文章
印刷字符识别基于matlab OCR印刷字母+数字识别含Matlab源码 1861期