Detect different shaped contours?
How do i use detect certain shaped contours found using findContours. I want to bound contours which are thin and long, leave everything else away.. but cannot seem to adjust the parameter correctly,...
View ArticleVPS Alojamiento With Free SSDs
Namecheap offers VPS hosting packages in a wide range of sizes and prices. Lo más importante es que los servidores de Hostname están listos para marchar a la perfección con el gestor de contenidos que...
View ArticleOpenCV Manager not installing correct libraries for some devices
Hey, Some users of my app report that after installing the OpenCV Manager and running my app they encounter a messagebox with error: "OpenCV was not initialized correctly. Application will be shut...
View ArticleImage Recognition Issue-Image to Text
I am working on OCR using opencv and now I am currently able to detect individual character by drawing a rectangle around them .Now I am not sure how to proceed to convert the image into textfile...
View ArticleTile multiple images into one .bmp
Hello everyone, I am trying to solve a relatively simple problem, but the opencv library seems stitching seems like it perhaps may be overkill for what I'm trying to accomplish. Essentially here's what...
View ArticleFacedetection on android use qt creator and opencv?
Sorry my english is bad! I need a help about it! Thís is my code! #include #include #include #include #include #include #include #include #include using namespace cv; using namespace std; int main() {...
View ArticleHow to implement super resolution on python.
I am currently working on a project which needs super resolution technique on frame. I use python for this purpose and I wish to stick to that. I have googled a thousand number of times to find...
View ArticleVideo is not playing during runtime.
Hello Everyone, I have written program for Car tracking. I am sending video Car.mp4 during run time. *g++ -I/usr/local/include CarMotion-HSV.cpp $(pkg-config opencv cvblob --cflags --libs)* *./a.out...
View Articleknn on optical flow
Hi guys, Can anyone please explain to me how to use the knn algorithm on the optical flow algorithm? Basically I'm trying to eliminate outliers. I've started by using the lkdemo in the opencv samples...
View ArticleAccount Recovery
Google stopped supporting OpenID. I am unable to recover my account via email password reset. I am using the correct email and it is not in spam. Please fix the password reset via email. Thanks.
View ArticleIssues building xfeatures2d with opencv 3.0.0
I am running Ubuntu 14.04 and have successfully built OpenCV 3.0.0 from source with CMake. It turns out that by default there is no support for SIFT/SURF algorithms with OpenCV 3.0.0, and that I need...
View ArticleHow we know the numpy array of every color (lower bound and upper bound)
example blue the lower numpy array is [100,100,100] the upper numpy array is[120,255,255] I want to every color
View ArticleSaving frames in a loop doesn't match framerate
Hi, I'm trying to capture some frames using a modified version of a code I found here to read frames from the webcam. My webcam is supposed to be pushing 30fps (measured with outputing...
View Articleerror: ‘create’ is not a member of ‘cv::FeatureDetector {aka cv::Feature2D}’...
I am trying to compile the sample demo: [here](https://code.google.com/p/open-cv-bow-demo/downloads/detail?name=bowdemo.tar.gz&can=2&q=) I have been slowly repairing different compiling...
View ArticleDoes accumulate() in OpenCV 3.0.0 support the 3d Mat?
Hi, guys. I migrate opencv 3.0.0 recently. After the migration, the accumulate() in the following line throw an exception. > int sizes[] = {1, 512, 1024};> cv::Mat mat1(3, sizes, CV_32F,...
View Articleerror while drawing lines from houghlines()
hi guys, im new to openCv and image processing in general and i need to draw the lines in real time from a camera input. it working fine until i try to draw in the original image the lines detected...
View ArticleBOWKMeansTrainer cluster Python issue
Hello all, I'm trying to use cluster from the BOWKMeansTrainer class on python. Here's a snippet of code to give you an idea sift = cv2.SIFT() print names_path descriptors_unclustered = [] for p in...
View ArticleDrawing Bounding Box
Hello peeps I have developed a piece of software that draws contours of the input image, now I wont to take this to the next level and draw Bounding Box around objects of interest i.e. A person. I...
View ArticleHow to use BOWImgDescriptorExtractor in python - openCV ?
Hi, I am a beginner to openCV and am trying to use python-openCV. I have version 2.4.10. In this I am trying to use the BOWImgDescriptorExtractor as follows : extractor =...
View ArticleNext step in image recognition? cv 2.4.11 on python
Hello all, I'm trying to do image recognition using BOW and SIFT feature descriptors. So far, I've created my dictionary using BOW and my training images. Now, I'm going through my testing images,...
View Article