1、首先申请账号下载SDK
https://faceid.com/faceopen/login
2、从后台申请appkey
#define api_key @"B8n0Ey1jtG_rdcXPt1ixkh_hi8gUtIhH"
#define api_secret @"41Hj4-hl3swt66gpXor9IUwus6OBaDA8"
3、请求https://api.megvii.com/faceid/v3/sdk/get_biz_token获取
这个函数的值initMGFaceIDLiveDetectManagerWithBizToken：
4、请求https://api.megvii.com/faceid/v3/sdk/verify"获取识别结果
附上代码
- (void)viewDidLoad {
[super viewDidLoad];
[self requestData];
UIButton* detectButton = [UIButton buttonWithType:UIButtonTypeCustom];
[self.view addSubview:detectButton];
[detectButton setBounds:CGRectMake(0, 0, 100, 44)];
[detectButton setCenter:self.view.center];
[detectButton setTitle:@"Detect" forState:UIControlStateNormal];
[detectButton setTitleColor:[UIColor whiteColor]
forState:UIControlStateNormal];
[detectButton setTitleColor:[UIColor lightGrayColor]
forState:UIControlStateHighlighted];
[detectButton setBackgroundColor:[UIColor blueColor]];
[detectButton addTarget:self
action:@selector(startFaceIDLiveDetect:)
forControlEvents:UIControlEventTouchUpInside];
}
//接口用于配置人脸比对的身份核实功能，支持有源比对（调用者提供姓名、身份证号、和待核实人脸图）和无源比对（直接比对待核实人脸图和参照人脸图）。客户通过服务器将本次活体相关的配置传到FaceID服务器，在验证无误后，返回本次业务的biz_token，用FaceID MegLiveStill SDK的初始化。
-(void)requestData{
NSString* sign = [self getSignStr];
NSString *url = @"https://api.megvii.com/faceid/v3/sdk/get_biz_token";
// liveness_type meglive：动作活体 still：静默活体
// comparison_type 0：表示无源比对 1：表示有源比对
//有源
// UIImage *originImage = [UIImage imageNamed:@"mine"];
// UIImage *scale = [self scaleImage:originImage toKb:100];
// NSData *imagedata = UIImagePNGRepresentation(scale);
// NSString *encodedImageStr = [imagedata base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
NSDictionary *parameters = @{@"sign":sign,@"sign_version":@"hmac_sha1",@"liveness_type":@"meglive",@"comparison_type":@"1",@"idcard_name":@"胡淑贞",@"idcard_number":@"362229199301111029"};//,@"image_ref1":imagedata
//无源
// NSDictionary *parameters = @{@"sign":sign,@"sign_version":@"hmac_sha1",@"liveness_type":@"meglive",@"comparison_type":@"0",@"uuid":@"胡淑贞",@"image_ref1":imagedata};
[[BaseHttpRequest sharedInstance]sendPOSTHttpRequest:url parameters:parameters success:^(id dicData) {
NSLog(@"数据%@",dicData);
NSDictionary *dicDatas = [self dictionaryWithJsonString:dicData];
self.biz_token = [dicDatas objectForKey:@"biz_token"];
self.time_used = [dicDatas objectForKey:@"time_used"];
self.request_id = [dicDatas objectForKey:@"request_id"];
} error:^(NSString *errorInfo) {
NSLog(@"%@",errorInfo);
}];
}
//接口用于将FaceID MegLiveStill SDK 所获得的数据进行上传，并获取活体验证、人脸比对、攻击防范等结果信息
-(void)deliverBackData{
NSString* sign = [self getSignStr];
NSString *url = @"https://api.megvii.com/faceid/v3/sdk/verify";
NSString *encodedImageStr = [self.meglive_data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
NSDictionary *parameters = @{@"sign":sign,@"sign_version":@"hmac_sha1",@"biz_token":self.biz_token,@"meglive_data":encodedImageStr};
[[BaseHttpRequest sharedInstance]sendPOSTHttpRequest:url parameters:parameters success:^(id dicData) {
NSLog(@"上传接口返回数据%@",dicData);
} error:^(NSString *errorInfo) {
NSLog(@"上传接口失败%@",errorInfo);
}];
}
-(void)shangchuanData{
NSString* sign = [self getSignStr];
NSDictionary * body = @{@"sign":sign,@"sign_version":@"hmac_sha1",@"biz_token":self.biz_token};
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.requestSerializer.timeoutInterval = 20;
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/json", @"text/plain", @"text/html", @"text/javascript",@"image/jpeg",@"image/png",@"application/octet-stream", nil];
manager.requestSerializer= [AFHTTPRequestSerializer serializer];
manager.responseSerializer= [AFHTTPResponseSerializer serializer];
NSString *url = @"https://api.megvii.com/faceid/v3/sdk/verify";
[manager POST:url parameters:body constructingBodyWithBlock:^(id _Nonnull formData) {
//把image 转为data , POST上传只能传data
// NSData *data = UIImagePNGRepresentation(image);
//上传的参数(上传图片，以文件流的格式)
[formData appendPartWithFileData:self.meglive_data
name:@"file"
fileName:@"mine.png"
mimeType:@"image/png"];
} progress:^(NSProgress * _Nonnull uploadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSDictionary * dic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingAllowFragments error:nil];
NSLog(@"上传成功%@",dic);
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"上传失败%@",error);
}];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
#pragma mark - Detect
- (void)startFaceIDLiveDetect:(UIButton *)sender {
sender.userInteractionEnabled = NO;
MGFaceIDLiveDetectError* error;
MGFaceIDLiveDetectManager* liveDetectManager = [[MGFaceIDLiveDetectManager alloc] initMGFaceIDLiveDetectManagerWithBizToken:self.biz_token
extraData:@{} error:&error];
if (error || !liveDetectManager) {
sender.userInteractionEnabled = YES;
return;
}
[liveDetectManager startMGFaceIDLiveDetectWithCurrentController:self
callback:^(MGFaceIDLiveDetectError *error, NSData *deltaData, NSString *bizTokenStr, NSDictionary *extraOutDataDict) {
self.meglive_data = deltaData;
NSLog(@"错误信息%@=======数据%@============TTT%@==========字典======%@",error,self.meglive_data,bizTokenStr,extraOutDataDict);
[self deliverBackData];
// [self shangchuanData];
sender.userInteractionEnabled = YES;
}];
}
- (NSString*)getSignStr {
int validdurtion = 10000;
NSDate* date = [NSDate dateWithTimeIntervalSinceNow:0]; //获取当前时间 0秒后的时间
NSTimeInterval currenttime = [date timeIntervalSince1970];
long int expiretime = currenttime + validdurtion;
long random = labs(arc4random() % 100000000000);
NSString* str = [NSString stringWithFormat:@"a=%@&b=%ld&c=%f&d=%ld" ,api_key,expiretime,currenttime,random];
const char *cKey = [api_secret cStringUsingEncoding:NSUTF8StringEncoding];
const char *cData = [str cStringUsingEncoding:NSUTF8StringEncoding];
char cHMAC[CC_SHA1_DIGEST_LENGTH];
CCHmac(kCCHmacAlgSHA1, cKey, strlen(cKey), cData, strlen(cData), cHMAC);
NSData *HMAC = [[NSData alloc]initWithBytes:cHMAC length:sizeof(cHMAC)];
NSData* sign_raw_data = [str dataUsingEncoding:NSUTF8StringEncoding ];
NSMutableData* data = [[NSMutableData alloc] initWithData:HMAC];
[data appendData:sign_raw_data];
NSString* sign = [data base64EncodedStringWithOptions:0];
return sign;
}
-(NSDictionary *)dictionaryWithJsonString:(NSString *)jsonString {
if (jsonString == nil) {
return nil;
}
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *err;
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
options:NSJSONReadingMutableContainers
error:&err];
if(err) {
return nil;
}else {
return dic;
}
}
-(UIImage *)scaleImage:(UIImage *)image toKb:(NSInteger)kb{
if (!image) {
return image;
}
if (kb<1) {
return image;
}
kb*=1024;
CGFloat compression = 0.9f;
CGFloat maxCompression = 0.1f;
NSData *imageData = UIImageJPEGRepresentation(image, compression);
while ([imageData length] > kb && compression > maxCompression) {
compression -= 0.1;
imageData = UIImageJPEGRepresentation(image, compression);
}
NSLog(@"当前大小:%fkb",(float)[imageData length]/1024.0f);
UIImage *compressedImage = [UIImage imageWithData:imageData];
return compressedImage;
}