百度智能（文本识别），API传图OC代码与SDK使用

百度智能中的文本识别中的身份证识别，有API方式和SDK方式

API方式

百度智能（文本识别），百度API传图没有提供OC的示例，这里提供一下

- (void)OCTest:(NSString*)token {

    //***********post请求********************//
    NSString *testURL =[NSString stringWithFormat:@"https://aip.baidubce.com/rest/2.0/ocr/v1/idcard?access_token=%@",token];
    testURL = [testURL  stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
    NSURL *url = [NSURL URLWithString:testURL];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    //设置请求方法
    request.HTTPMethod = @"POST";
    //设置请求体
    UIImage *testImage = [UIImage imageNamed:@"test.jpg"];
    NSData *imageData = UIImagePNGRepresentation(testImage);
    NSString *baseStr = [imageData base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
   NSString *urlEncode=  (NSString *)CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(
                                                                          NULL,
                                                                          (__bridge CFStringRef)baseStr,
                                                                          NULL,
                                                                          (CFStringRef)@"!*'\"();:@&=+$,/?%#[]% ",
                                                                                       CFStringConvertNSStringEncodingToEncoding(NSUTF8StringEncoding)));

    NSLog(@"urlEncode is %@",urlEncode);

    NSString *str =[NSString stringWithFormat:@"image=%@&id_card_side=%@",urlEncode,@"front"];
    NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];

    request.HTTPBody = data;
    NSURLSession *session  = [NSURLSession sharedSession];
    NSURLSessionDataTask *dataTask =  [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        //
        if (error) {
            NSLog(@"error is %@",error);
        }else
        {
            NSLog(@"data is %@",data);
           NSDictionary *dic= [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
            NSLog(@"解析得出的dic is %@",dic);
        }
    }];
    [dataTask resume];

}

如果UI没设计拍照UI，这里建议大家使用SDK，稳定性好，效率高。

SDK方式

真机运行报错的话，把lib中的模拟器都移掉。

真机运行报错、Archive/IPA/Upload AppStore 时报错"Unsupported Architecture. Your executable contains unsupported architecture '[x86_64, i386]..."

为了方便开发者调试，AipBase.framework合并了模拟器和真机架构，上线前，使用lipo工具移除相关架构即可，参考：

cd lib
# 使用lipo -info 可以查看包含的架构
lipo -info AipBase.framework/AipBase  # Architectures in the fat file: AipBase are: i386 x86_64 armv7 armv7s arm64
# 移除x86_64, i386
lipo -remove x86_64 AipBase.framework/AipBase -o AipBase.framework/AipBase
lipo -remove i386 AipBase.framework/AipBase -o AipBase.framework/AipBase
lipo -remove x86_64 AipOcrSdk.framework/AipOcrSdk -o AipOcrSdk.framework/AipOcrSdk
lipo -remove i386 AipOcrSdk.framework/AipOcrSdk -o AipOcrSdk.framework/AipOcrSdk
# 再次查看
lipo -info AipBase.framework/AipBase # Architectures in the fat file: AipBase are: armv7 armv7s arm64

如果想修改SDK的UI，可以使用AipOrcSdk中的源码，站在巨人的肩膀上编程，也很香！