Vector subscript Out of Range Exception
I am getting a vector subscript out of range exception, and a breakpoint is triggered at line 53. It is saving only 3 images out of all images being processed. How to solve this problem?? #include...
View ArticleOpenCV Highgui error - Crosscompile
I'm have build the OpenCV library from source for Zynq (ARM). But, OpenCV was build on the same PC for x86 (PC) also. Firstly, I can execute every example on my PC without any issues. Secondly, I am...
View Articlecompile opencv withough gui
hello, as I cant compile opencv on ubuntu 14.04/arm platform (highgui has errors) (my previous unresolved thread here http://answers.opencv.org/question/40348/error-compiling-245-on-ubuntu/) I wanted...
View ArticleHello trying to create a cv::Mat() got Insufficient memory
This is what i have: rows = 9208 cols = 15152 cv::Mat img_masked = cv::Mat(sourceImage.rows, sourceImage.cols, sourceImage.type()); Error: OpenCV Error: Insufficient memory (Failed to allocate...
View Articlei want to read image captured by webcam videocapture and write that to some...
> I am working on a project where my first step is to detect faces by webcam and the 2nd step is to save those images into some file .i am using opencv programs for facedetection. imagetoshow...
View ArticleList of applications made with OpenCV
I am getting started with learning OpenCV. Having studied Digital Image Processing in my previous semester, I implemented filters (Gaussian, Sobel, Prewitt, Laplacian), edge detectors (Canny, Marr...
View Articlealgorithm to computer vision obstacle detection ??
My graduation project is indoor navigation system for blind people so I need to implement obstacle detection using android and open CV, I followed these steps but accuracy is not good : 1- convert to...
View Articleunion of contours opencv
I found the contours of one image that content numbers, then I used boundingrect for find the rectangles of those contours the result is:  I...
View ArticleWhere can I find the minimum supported Mac OSX versions supported by each...
Hi Folks, tl;dr: App works fine on my osx system, but crashes on older ones. I am looking for information on the minimum required osx version for opencv library versions, expecially 2.4.13 and 3.1....
View ArticleHow to Visulaize HOG features with Original Image?
After calculation of HOG features. How to visualize these features with original image using Opencv?
View ArticleProblem in saving xml files
I am having difficulty in saving the xml files. I am using a loop to grab all the images in a folder and then to perform HoG. However, it is not saving any of the xml files. But, when done...
View ArticleOpenCV: VideoCapture::get(CV_CAP_PROP_POS_MSEC ) returns 0
I'm trying to timestamp the frames when recording video using OpenCV 3.1.0. However, when using VideoCapture::get(CV_CAP_PROP_POS_MSEC) to get the millisecond timestamp of the last frame grabbed the...
View ArticleDoes opencv has type cell like matlab that can store several Matrices
Hi, I am working on image processing for my thesis and I need process hundreds of images at one time, so I would like to know whether I can store these image mat in one data structure, like cell in...
View ArticleSimple Video Display program using Thread
I would like to display the video frame in thread. But when I run the below code, I feel that the program executes but does not display the live video frame. I felt there might be an error in...
View ArticleIncreased Reprojection Error from Chessboard Calibration
So, I have written a script that performs chessboard calibration and the reprojection error I get is always greater than 1.3-1.5 pixels, even though the calibration parameters are correct (except the...
View ArticleSVM predict Assertion failed
For now I am trying to predict only 1 or -1 the error is OpenCV Error: Assertion failed (samples.cols == var_count && samples.type() == CV_32F) in predict my code public static Mat...
View ArticleSIGSEGV while write video with x264 encoder
Hey I'm using the OpenCV VideoWriter to create some video's. The good news that it works, but unfortunately isn't very stable. The system crashes randomly with a segmentation fault. I've debugged with...
View ArticleHow to save 1 xml file for 1 movement?
I am having difficulty in understanding how to save 1 xml file for a movement. I have a folder of frames and I have performed the hog feature of each frame and save their corresponding xml files in a...
View ArticleNeural Network for Image Recognition in C++/OpenCv
I am working on creating a Real-time image processor for a self driving small scale car project for uni, It uses a raspberry pi to get various information to send to the program to base a decision by....
View ArticleError while saving trained SVM in OpenCV 3.2.0 Java
when I try to save my trained SVM into file, I get the following error: Caused by: java.lang.Exception: unknown exception at org.opencv.core.Algorithm.save_0(Native Method) at...
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