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Questions tagged [face-recognition]

Face recognition is the process of matching faces to determine if the person shown in one image is the same as the person shown in another image. This is distinct from face detection which only determines where an image exists a face. Face recognition has broad use in security technology, social networking, cameras, etc.

Face recognition is the process of matching faces to determine if the person shown in one image is the same as the person shown in another image. This is distinct from face detection which only determines where in an image exists a face. Face recognition is part of a larger class of biometric technologies.

There are two main modes of face recognition, one to one (where two faces are compared to each other) and one to many (where one face is matched against many faces). There are a number of free and open source and commercial face recognition tools and libraries. Face recognition is built into cameras, social networking sites (like Facebook), photo sharing sites (like PicasaWeb), and smart phones (like modern iPhone and Android phones).

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Scan no of faces in the pic and compare

I want to write a program that calculates the number of faces in the picture and want to ensure that there is only one face in the picture. Also, my second requirement is that I want to compare two images and ensure their facial match shows a good…
Shivanshu Gupta
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Plot ROC curve using scikit-learn for face recognition using image datasets causes error.( fetch_olivetti_faces)

I am quite new to machine leaning. Any help would be appreciated. I want to plot graphs to show the algorithms(LDA, SVM) accuracy and error rate.And compare which algorithm is better among both. Accuracy returned by running the python program in the…
aja
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FaceDetector does not recognize any face taken with the intent ACTION_IMAGE_CAPTURE

I am trying to get the faces of an image taken using the ACTION_IMAGE_CAPTURE intent. But for some reason the FaceDetector never finds an image. This is my code BitmapFactory.Options options = new BitmapFactory.Options(); …
Neorcisa
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How to convert Mat to IplImage in Javacv?

Is any one know how i can convert Mat to IplImage ? to achieve this i have converted Mat to BufferedImage but again not able to find conversion in BufferedImage to IplImage. is there any way where i can convert Mat to IplImage? Thanks
Vicky
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Face Recognition in Videos with OpenCV3 gives Unhandled exception (opencv_core310.dll)

Below code used to recognize face which i got from the below link http://docs.opencv.org/3.0-beta/modules/face/doc/facerec/tutorial/facerec_video_recognition.html. The only modification I've done is: Instead of using command line arguments to…
digital
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Face recognition Opencv confidence negative value

i'm working on face recognition Project and i have followed the tutorial in the opencv website and i have use the same dataset , but when i test my program i have strange result (the confidence value) it gives me a large value((confidence = …
lafi raed
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What is default threshold for Microsoft face api?

I was playing around with Microsoft Face Api. When comparing two photos for facial verification, it gives out confidence score. So what is default threshold after which api identifies different match
mohitmun
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Sinch SDK and detect facial IOS

I'm beginning to integrate Sinch SDK in my project IOS but I want to know if it's possible to add a detection facial in the same classe
Aladin
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Face Recognition with FisherFace always predict a person.How to return -1(unknown person) when not have trained person to face the camera?

I have a data set consisting of 2 people (PERSON A and PERSON B). My code works perfectly when PERSON A or PERSON B go to the camera(real time). But I test again with PERSON C (not have training images of PERSON C in .csv file ) when PERSON C goes…
Ahmet Anıl Yaylalıoğlu
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How to send images to Emotion services using Swift 3

I am trying to send the image from UIImageView to Cognitive service (Emotion API) but server response with error. {"error":{"code":"BadArgument","message":"Invalid Media Type."}} My code: let boundary = generateBoundaryString() let url =…
Qzartec
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Text To speech in openCv using C++

actually this is the first time to post a question on stcakoverflow. I have a question about opencv. right now I am working to develop a program takes an attendance using face detection and face recognition where the student stands front of the…
Marco
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How to evaluate the performance of facial recognition library?

I am tasked with evaluating the performance of two separate SDK solutions. I would like to ask what's the suggested way to evaluate which one is better in terms of precision? thanks
Leo Chen
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opencv/C++: Place a saved image over a webcam stream with facial recognition

I am trying to figure out how to place a saved image over a webcam stream in C++. The trick is that I want to place the image over a face and whenever the face moves, the image will move. I was able to draw a circle over a face with my code…
Ryan_L
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Opencv and c++ Fisherface algorithm always predict wrong even with the exactly same image as input and reconstruct a black image

So as the title says, i'm having a problem when working with opencv on c++ using interface of Windows forms only to send the input for the actions on the program, basically i save the treated images on a folder and recover them without any problem i…
Matheus Solar
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Face-API: There is no persisted faces of person in group

i'm using ms github project :Facial-Recognition-Door Facial-Recognition-Door private async Task TrainingWhitelistAsync() { bool isSuccess = true; // Train whitelist after add all person Debug.WriteLine("Start…
Vincent
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