I am trying to train a Haar Cascade to detect hands. I have a vec file of size 1000. I have 40 positive images and 600 negative images. I have tried both dropping my positive images and negative im...

I would like to know is there is a way to blur the faces that have been automatically identify by the haarcascade face classifier. using the code below, I'm able to detect the faces, crop the imag...

I need a collection of sample images to train a Haar-based classifier for plate detection. I know this question has been asked already, but the source on googlecode is dead. http://tutorial-haartr...

I've made a classifier (based on HoG features) that can recognize big vehicles (buses and trucks). But I want to be able to distinguish between buses and trucks, too. This causes problems since bot...

I am trying to detect the mouth in an image with openCV, so I am using the following code: #include "face_detection.h" using namespace cv; // Function detectAndDisplay void detectAndDisplay(cons...

Im taking my first steps in making a haar cascade for custom object recognition. Ive spent time getting a fair bit of data and wrote some preprocessing scripts to convert videos to frames. My next ...

Today I begin to test the project which detects a smile in Java and OpenCv. To recognition face and mouth project used haarcascade_frontalface_alt and haarcascade_mcs_mouth But i don't understand w...

This is the first time I use openCV library. I want to use it to detect the eyes. I have used the FdActivity code available in this tutorial: http://romanhosek.cz/android-eye-detection-updated-fo...

This block of code (in views.py) is triggered by a URL.No problem in importing cv2.(Same thing tried with virtualenvwrapper shows same result (after adding all required libraries) Camera initialize...

I'm using a trained opencv cascade classifier to detect hands in video frames, and would like to lower my false positive rate. Reading up on the net, I saw you can do so by accessing the rejectLev...

I need a collection of sample images to train a Haar-based classifier for face detection. I read that a ratio of 2 negative examples for each positive example is acceptable. I searched around...

I am trying to build haar cascades for doing OCR of a specific font; one classifier per character. I can generate tons of training data just by drawing the font onto images. So, the plan is to ge...

I am trying to create a Haar classifier to recognise objects however I can't seem to figure out what the results table that is produced at each stage stands for. E.g. 1 ===== TRAINING 1-stage ===...

I am trying to develop a simple application to detect faces as well as eyes in a given image: from cv2 import * face_cascade = CascadeClassifier('haarcascade_frontalface_default.xml') eye_cascade ...

(This came out a bit long, but it's mostly an hardly hard to understand explanation :) For a project I have I need to recognise objects that, in general form, look like this - Inside a bigger i...

I'm currently using Haar classifiers, to detect objects. On my way, I didn't understand what is the minNeighbors parameter, what is it representing? Actually I don't understand what are the neighbo...