calibration between mouse move & pupil move (eye writer)
hello i write program for detect face & then detect **Right eye** & then detect pupil (circle hough) Finally move mouse. The problem I have is that ‌Move the mouse range is low. the range of...
View Articleopencv 2.4.11 BackgroundSubtractorMOG2 problems with background and foreground
I'm having problems getting BackgroundSubtractorMOG2 to work. I'm using: 1) OpenCV 2.4.11 (x64) 2) Visual Studio 2010 Here are 2 problems I'm experiencing: 1) The foreground (e.g. fgMask) and...
View ArticleWhich filter should be applied on different type of noise image?
Hello As The filter is used to remove the noise. There are many filters like 1. Homogeneous filter 2. Gaussian filter 3. Median Filter 4. Bilateral Filter etc. and also different types of noise are...
View Articlememory leak with VideoCapture
Hello, I was debuging my code when I saw a memory leak with VideoCapture. There you have the memory of my computer : it's go up realy fast http://i.imgur.com/wXtpKS0.png I tested this two code : while...
View ArticleHow do I convert byte array to Mat object in Java with OpenCV?
I do not want to write to a file then decode file.
View ArticlePixel datas in a circular region
Hi, Just want to ask if it is possible to access the intensity value of all pixels in a circular region at the center of an image? I am very new to openCV and for now I can only set the ROI into a...
View ArticleVideo Completion Scheme with OpenCV
I'm trying to perform a video stabilization with opencv and c++. I have been able to perform motion estimation and compensation but there exists black areas around the edges of the video as a result....
View ArticlePossible cornerSubPix bug in 2.4.13
Hi, I'm using OpenCV 2.4.13 on OSX, and I'm calling cv2.cornerSubPix to refine the location of some corners, and generally its working, but in some cases it seems to return the wrong value completely....
View ArticleFace detection using OpenCV with Java
Hi, I am trying to use OpenCV 3.1.0 in a java based face detection program. I am using OpenCV for first time and I have followed...
View ArticleUsing PCA and LDA for dimensionality reduction for SVM
I am preparing data for training an SVM. I use PCA to reduce dimensionality of data before using LDA for class discriminant dimensionality reduction. I then feed reduced data projected into LDA...
View Articleblockmatching.h:0: Note: No relevant classes found.
Dears, I'm trying to use OpenCVBM application from https://github.com/DLuensch/StereoVision-ADCensus that use OpenCV but by compiling I am getting:...
View Articlemodule compiled against API version 9 but this version of numpy is 7
i 'm not able to solve this: RuntimeError: module compiled against API version 9 but this version of numpy is 7 Traceback (most recent call last): File "", line 1, in import cv2 ImportError:...
View ArticlePlease let me know how to convert Mat to IplImage in JAVA. Thank you in advance.
I've tried using the following code; **Mat mat_img; IplImage ipl_img = mat_img;** but it is giving me the following error, Type mismatch: cannot convert from Mat to opencv_core.IplImage
View ArticleFramework to connect superpixels that are 'similar'
I have an image that has been segmented into superpixels. Now id like to **merge / grow** similar regions into bigger blobs and I was wondering if anyone can send a link to a paper that discusses the...
View ArticleCall OpenCV from a C-File
Hello Community, I'm new here and have less programming experience. For a project work for my studies I want to implement an image processing code in an existing program. If this question is misplaced...
View ArticleSpeed up for remap with convertMaps
Hello! I'm currently working on distorting an image with remap to simulate a camera. This is how I create the maps: Mat float_distortion_map_x(height_, width_, CV_32FC1); Mat...
View ArticleOpencv 3.1 and Visual Studio 2015 (cannot open file 'opencv_calib3d310d.lib')
Hello there, I followed the [Installation by Using the Pre-built Libraries ](http://docs.opencv.org/3.1.0/d3/d52/tutorial_windows_install.html) article (I didn't make my Own Libraries from the Source...
View Articleopencv-3.1.0 compile with contrib error when compile aruco
...../opencv_contrib/modules/aruco/src/charuco.cpp: In function ‘double cv::aruco::calibrateCameraCharuco(cv::InputArrayOfArrays, cv::InputArrayOfArrays, cv::Ptr&, cv::Size, cv::InputOutputArray,...
View ArticleDraw circles on opencv camera preview
Hi, i am trying to draw circles on a CameraBridgeViewBase - opencv camera on android, But i need to do it on a point that i am not in onCameraFrame any more - i am doin tracing , and i need to check...
View ArticleImage processing in Android and in Java (Eclipse) has different results
I'm having a strange problem trying to do some image processing. I've developed a script in Eclipse that does some processing with an image and returns a list of values about color comparing between...
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