Hi everyone, This has been asked before, and the answer is always redirected to cvConvertScale. I just want to make it clear that cvConvertScale IS NOT ...
I wonder if anyone is facing this problem as well... The same piece of code runs in 2.3.1 but when I tried in 2.4, CascadeClassifier::Load() kept returning...
Hello I have two points of type CvPoint and I use them to draw a line using cvLine I'd like to know the pixel indices on which these lines are drawn is this...
I am using OpenCV 2.3.1 with python 2.6.8. My goal is to calibrate stereo cameras with 640x480 sensors and 3.5mm lenses. I capture images of the asymmetric...
Hello, I am working on a small project where I would like to be able to recognize in real time some simple pictograms (blue printed on white paper. can have...
I am trying to perform color conversion on the gpu and have run into some problems. In order to debug I have made the following application which read an image...
Hi, I want to make some realtime face detection to then be sent to face.com to be identified I started by having only one CaptureFromCAM and then inside a loop...
Hey everybody, I'm quite new to OpenCV and I need to write a code with the following functions: MatchTemplate, Canny and Hough Line Transform. I already have...
Hello guys, i am trying to save single channel video while using cvWriteFrame(), needs images with depth = IPL_DEPTH_8U and nChannels = 3 . So Could any one...
Hi, i using OpenCV 2.3.1 and I'm a bit confused about the behavior of cvFindContours. Input: Mat input = (Mat_<uint8_t>(4,5) << 255, 255, 255, 255, 255, 255,...
Hi,right now i'm doing 3d reconstruction using stereo images. i know OpenCv already implemented some stereo algorithms (GC, BM, and GCBM). Somehow those...
Good Day Is there anywhere i can get a vehicle detection cascade file? I really need to test something and do not quite know how to create one myself just yet....
Hi All Is there a quick way to limit the number of tbb threads used in some optimized functions (like surf) in the prebuilt version of the OpenCV 2.4? I know...
Hy, Ii implement an eigenFaces recognition program, i have calculated the eigenValues , eigenvectors and the average image of my input images and i want to...
I downloaded the OpenCV2.4 and installed it, I use VS2008, when i debuging the sample of "matching_to_many_images.cpp" ,I found this lines in sample: if(...
Good day, I've successfully calculated the distorton coefficients and the intrinsic parameters for my camera. I use cv::undistort to undistort the grabbed...
 Hello All,  I have downloaded ARM DS-5 suite eval version which have ARM compiler. I have installed it on my x86 Ubuntu 11.10 (Intel core 2 duo)...
Hi guys, I've already post this question but I didn´t have any answer. Sorry to insist but I'm a beginner using opencv+python and I would like to feel...
Hello Hello, I recently discovered openCV and have been learning as much as possible. I have been formulating a project for some years for a preschool report...
Hi guys. Other than usually I don't have a question. I have benchmarked a few NVIDIA GPU's with OpenCV functions and related it to the CPU performance of two...
Now that 2.4 is barely out and there is a site which collects bug reports for 2.5. already. So - who is in charge? It looks like each release has its own...
Found bug in gpu::warpAffine when input is GpuMat with 4 channels, uchar. There is an x and y offset that moves the image when using 4 channel gpumat, altough...
I'm at the beginning in opencv and I would like to see the content of the func code cvRectangle. I only found this in core_c.h: CVAPI(void) cvRectangle(...
Hi, Does someone have a good example showing how training for HOG+SVM or/and haartraining is done? I'm having some problems to understand how is it performed. ...
I have been trying background subtraction using Mixture of Gaussians using the following python function: cv2.BackgroundSubtractorMOG(history, nmixtures,...
i'm just starting looking at implementing a vision system for a pick and place machine for home use , anyone working on such a project ? , and willing to share...
I'm using opencv's EM implementation, but I'm running up against a bug in the released version (2.4.0): http://code.opencv.org/issues/1939 This bug says it's...
