Informative websites related to OpenCV
i think it will be useful if we add links of informative websites related to OpenCV here. Lets create a list together. Last additions : https://github.com/atduskgreg/opencv-processing (JAVA tutorials)...
View ArticleObject detection and navigation with Visual Camera?
Hi I have just ventured into computer vision and trying to demystify various intricacies of it. I am trying to detect the door of a Aircraft with Visual Camera and navigate a mobile robot to the center...
View Articlehow to perform face recognition on images are stored in folder?
hello everyone, i have done with capture,detect and save the current capture image in folder but can anyone tell me how to do recognition for multiple images??
View Articleusing detectMultiScale on specified coordinates and size
Hello everyone,how can i use the detectMultiScale method on a single specified location of specified size?I tried using it with same Size(x,y) parameters but it doesn't detect anything although i know...
View Articleimage based face recognition
i have write the below code for reading two images from folder and apply fisherface training algorithm on them there are two person images that i have read....can anyone tell me how to proceed the code...
View ArticleCascadeClassifier::detectMultiScale function
Hello, I just learned how to use CascadeClassifier::detectMultiScale function to detect human face(http://docs.opencv.org/2.4/doc/tutorials/objdetect/cascade_classifier/cascade_classifier.html), and I...
View Articlestitching_detailed problem
Hey!! I am having a problem using the source code of opencv 2.4.12 to stitch a sequence of images into a panorama, called stitching_detailed.cpp that come in the source code folder. I'm trying to...
View ArticleOpenCV 3.0.0, FaceRecognizer and Python Bindings
Hi there - I am very new to OpenCV and am using it for a school project on the Raspberry Pi (Mine is the B+ model). I have followed numerous guides to get the FaceRecognizer to work in Python, but to...
View ArticleCreate a dataset - Kinect
Hey there I need to record a new `RGB-D` `Kinect` dataset for people detection. I did some research on the datasets available but non of them can fit my criteria. Does anyone has any experience...
View ArticleDisparity map on opencv 2.4
Hy! I am using openCv 2.4 with python 2.7. I wanted to make a disparity map from 2 stereo images and after a googling i found a good example in:...
View ArticleCannot identify device '/dev/video0' - video reading OpenCV 3.1
Hello, I'm trying read the video from a camera connected to my computer using OpenCV. I tried this first test, and I got the following error message : "GStreamer Plugin: Embedded video playback...
View ArticleROI functions in c and c++
I have the following c code implementation and i want to port to c++ i want to use equivalent to cvSetImageROI ,cvResetImageROI cvSetImageROI(pMainImg,cvROIRect); cvMatchTemplate(pMainImg, pTempImg,...
View ArticleFilter for covariance
Ok, so this may seem a little odd but bear with me. I have an image, and I have a line (point slope form). What I need is a way to find the covariance above the line and the covariance below the line....
View ArticleWhat is meant by "scale" in case of monocular visual odometry?
The following are 2 reasons why monocular visual odometry is not the best option: 1) Results from monocular sequences can only be recovered up to a 'scale'; without additional information, absolute...
View ArticlematchTemplate c++ exception first time only
running video file with several thousand frames. matchTemplate crashes only on the first time i call it, then runs fine every time afterwards. first time called, Live and template are two different...
View ArticleFace Position
Hello Everyone, I am working in faceRecognition project, I would like to know if exist a procedure to check what is the current possiton face, if person is looking to front or to sides. I need allow...
View ArticleLaser Range Finder
Hello, I have a laser range finder sensor that gives as an output a cloud of points . how can hough transform be utilized if i want to convert the points to lines ?
View ArticleWhere is the extrinsics file for the aloe plant for reprojection?
Hi community, I was just tracking the samples shipped with OpenCV created the disparity map for the aloe plant but cannot reproject3d as i cannot find the extrinsics file in the samples directory. I...
View Articleunable to install opencv3 from source
I am trying to install opencv3 with cmake using the [tutorials using python](http://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_setup/py_setup_in_windows/py_setup_in_windows.html)...
View ArticleWatershed not segmenting correctly
Hi, I am trying to implement a watershed segmentation to separate touching blobs. I want to separate the blobs from each other but I am getting a separation of the blobs from each other **and** from...
View Article