Visual Neural Network recognizer that breaks up an image into digital image features (nose, mouth, etc) to improve accuracy in object recognition.
Questions tagged [haar-classifier]
412 questions
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How to detect face in python open cv?
I am a newbie in python. I am working on a real time facial expression detection project. For the first module, my aim is to detect the face.
Is there any way to detect face without using any predefined classifiers(Haar Cascade)?
Is there any…
user8791111
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Increase the speed of face recognition with OpenCV on a Raspberry Pi
I have recently used OpenCV to do face recognition with the raspi. I have done it using a haar cascade. It is not fast at updating the live video with the box around a face. It freezes on a certain frame which is about 10 seconds behind and then…
Matthew Haywood
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Face Detection with OpenCV
I want to use these codes
http://docs.opencv.org/3.2.0/db/d28/tutorial_cascade_classifier.html
in VisualStudio to detect faces and i copy 2 XML file in my current directory . but i have some errors. my camera want to open but very quicly close (…
Android developer
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OpenCV Cascade Classification: Fast contrast stretching Constant
In the paper "Empirical analysis of detection cascades of boosted classifiers for rapid object detection", section 2.3, the authors talk about fast contrast stretching. I do not see in OpenCV or Matlab any reference to this preprocessing. Normally…
satideur
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OpenCV change path and permissions in function cvSave
How can I change the path and permissions of cvSave in OpenCV?
I am doing a haartraining and after all stages are complete I receive an error:
OpenCV Error: Unspecified error (Could not open the file storage. Check the path and permissions) in…
user3657447
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Hand Detection using EmguCV
I'm new to emguCV. I need to access web camera and detect the hand.then I need to recognize the sign of the hand and add some controls according to the hand sign. first of all I need to detect hand from web camera stream. I have no idea how to…
gihansalith
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How can I detect multiple signs using haar training
I am working on a project that detects signs, I am currently using haar training to obtain the hand detection. I have trained XML files for different signs. I am unable to use multiple XML files in my detection program. Is there anyway by which I…
user3422458
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