Example Using SurfAdjuster
I am using OpenCV 3.0 with VS2012 C++/CLI on a Win 8.1 64 bit machine and playing around with SURF. I created a SURF detector as follows: SurfDetector = new Ptr; *SurfDetector =...
View ArticleHow to Compile Using .jar?
I'm trying to compile on the command line using the opencv-300.jar file. It compiles fine, but once trying to run the program it begins to throw ClassNotFoundExceptions. The command I'm using is the...
View ArticleRunning a Java Program Referencing OpenCV's Jar File
I'm finding it impossible to run my program that's relying on the OpenCV jar file. I have compiled with "javac -cp opencv-300.jar *.java", but trying to run java Program meant it couldn't find the...
View ArticleUsing OpenCL and OpenCV in Android Studio (Tutorial 4)
I need to say, that I'm not very familiar with OpenCL and I simply wanted to start programming, just having an impression on how the computation is acclerated on mobile devices (in my case Xperia Z1...
View ArticleResize does not work in android app. opencv 2.4.11
"Imgproc.resize" function does not work in android application. I wrote a java test program to run on my PC, and the resize method worked perfectly? Any help why ? Or how to solve problem ?
View Articlehow to calculate euclidean distance in image pixels from a specific point in...
I have Calculated YCbCr value of hand in OpenCV. Now i wish to find Euclidean Distance from the above calculated values, in such a way: D={(Cb(i,j),Cr(i,j)),(Cbmin,Crmin)} Both Cbmin and Crmin have...
View ArticleHow to access Basler GigE camera through OpenCV in Ubuntu 14.04
Can we access GigE camera just like ip Camera. I followed "http://answers.opencv.org/question/133/how-do-i-access-an-ip-camera/" link but was unable to access the camera. I am getting the message as...
View ArticleWorld Co-ordinates and Object Co-ordinates
Hello, I am working with cv::SolvePnp(), cv::ProjectPoints(). We are working with a fully calibrated camera with known camera matrix and distortion coefficients. Given a detected marker, it is possible...
View ArticleUSB 3.0 Basler Camera with Opencv hangs on using imwrite/imshow
I am using Basler USB 3.0 Camera with Pylon SDK on an Odroid. I convert the image from Pylon format to Mat using the answers on...
View ArticleHow to set parameters for Orb in Java?
This [previous answer](http://answers.opencv.org/question/3167/java-how-to-set-parameters-to-orb-featuredetector/) seems clear, except the following code doesn't change the number of features...
View Articledetecting car from moving vehicle
I want to detect car from a moving vehicle by finding the rear light. I have extracted red color and using findContour detected them too, now how do I pair the lights? Is it by thresholding the...
View ArticleWhen I use OpenCV 2.4,the image does not load!
In my prev problem, I found out that the image doesn't load in my project when I use OpenCV 2.4 so I couldn't create CSV file. when I was using OpenCV 3.0.0 every thing was OK and I could load the...
View ArticleOpenCV 3.0 for Android - static initialization not loading new modules
I recently moved my Android project from OpenCV 2.4.10 to **OpenCV 3.0**. I statically initialize OpenCV using this code: OpenCVLoader.initDebug(); When I run my app, I get this exception:...
View Articleusing SIFT/SURF for feature extraction using opencv on android using Android...
I'm working on a feature extraction/matching app using opencv on android . I'm trying to use those lines in my android app but the app crash even if the variables featureDetector &...
View Articleopencv_ffmpeg231d.lib is out of directory
Hi, help please. When I building my project, IDE has a fatal error: 1>LINK : fatal error LNK1104: can not open file "opencv_ffmpeg231d.lib" I can't find this library file in installed...
View ArticleAndroid OpenCV : How to load SVM file from Assest folder
I wanna load svm file from assets in order to use it to make prediction. BUT how to do that in android ? I try these lines in java and they are works well CvSVM svm = new CvSVM(); svm.load(PathToFile);
View Articlematching silhouettes
hi, i am an opencv newbie with what i am hoping is a simple task for openCV. i am looking to match an unknown "silhouette" (i believe it should be called - a 2-bit black & white image, as below,...
View ArticleExtract Text From ID CARD
Hi i am very new to OpenCV and indeed to this forum as well ,My question is ... How can i determine the location of TEXT ( ASAD MUNEER 12K-2192 ) ( see image ) with OpenCV and C++, iam trying to...
View ArticleIs it possible to get multiple prediction from FaceRecognizer
The task: 1) We have 1000+ face image database 2) For given image, we must detect top 10 most similar faces from database - in most cases face will not be exactly in database so large value for...
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