What steps for recognizing book pages, and flattening them.
I'm trying to scan in some books for someone with a disability. I know C, but am a novice at image processing. (I have some books in electronic format, but there are two for a current course in school...
View ArticleHow to use #include cvcam.h in opencv 3.0?
I am trying to run a program that includes the header `cvcam.h`. It was made with opencv 2.4 but now i am trying to run it with opencv 3.0. For the header `#include "highgui.h"`, i changed it to...
View ArticleScan and find the length and breadth of object from iPhone camera
I want to find the length, breadth and outside diameter of the object My analysis so far: Applied the multiple algorithms like Canny and Sobel to detect the edges of the object. I converted a image...
View ArticleNeed Advice for a Funded project.
Hi Folks, Pls can anyone suggest me a good camera for following requirements : 1) Should stream to PC like a webcam. 2) Should have more than 30x Zoom 3) Clear 4) compatible with OPENcv. Pls help me...
View ArticleGender Classification-OpenCv with C++
Hello everyone! Since im into Image processing and im trying to learn it by myself, specially with the gender classification subject Im trying to implement a gender classifier for images with C++ along...
View ArticleFingerPrint Comparing And Detecting
Hi every body, I want to ask questions. Before i do, i want to explain what i need or what i am doing. i need to build a system.The system has database.There are id number, name,last name, their...
View Articleface recognition
Who tells me where to find the source (C ++) of a program to do face recognition from webcam. Including training needed to recognize faces in the video. I would not lose too much time because looking...
View ArticleHow to free memory allocated by UMat?
Hi, I need to free memory allocated by UMat during code execution, so I don't have an out of memory error. I'm using OpenCV 3.1.0 with CUDA 7.5. Here's what I've tried: cv::cuda::DeviceInfo di; size_t...
View Articlewhat is error in this question
#include “stdafx.h” #include “opencv2\highgui\highgui.hpp” #include “iostream” using namespace cv; using namespace std; int main(){ Mat im = imread("C:\\Users\\supriya123\\Desktop\\cake.jpg"); if...
View ArticleDoes anyone have sample stereoRectify code plus sample data to create...
I have a program that reads IE, IO, lens constants from calibration files, and a pair of stereo images. Then it calls stereoRectify to create a pair of epipolar images. I am struggling because the...
View ArticleLBPH OpenCV Raspberry Pi with Python
Hi, I have a Raspberry Pi and am trying to incorporate the cv2.createLBPHFaceRecognizer(). The code ran fine until we ran apt-get upgrade, causing OpenCV2 to update to OpenCV3. This removed the facial...
View ArticlePerplexed By Working With A Rug Solution? We Have The Knowledge You Want
Your rugs and carpets are a major expenditure. In spite of vacuum-cleaning regularly, it sometimes need to have strong cleaning. This is where you should go looking for a carpet cleaners firm. You...
View ArticleOpenCV 3.1 Random Forest - rtrees
I'm trying to have access to **number of classes** and **number of votes** for each class in an ``RTrees`` object in OpenCV 3.1. Apparently the structure of ver. 3.1 is very different from the...
View ArticleBlending artifacts in OpenCV image stitching
Hi there, I am using OpenCV to blend a set of pre-warped images. As input I have two 4-channel images (*.png or *.tif) from where I can extract a bgr image and an alpha mask with the region related to...
View Articleopencv on live CD ?
I've used opencv successfully in earlier versions, however, 3.1 contains a new function (make CLAHE) which I'd like to use, without having to install a totally different debian does anyone know of...
View ArticleK-Nearest Neighbors implementation on OpenCV 3.0
Hi, I'm trying to implement a simple digits recognizer using KNn in OpenCV-CPP, I've got a folder with all images I want to train the classifier, that is ten folders, one for every digits, containing...
View ArticleNo Makefile to build after cmake
Hi Guys Sorry if this has been discussed before, but I can't find any info on it. I'm having trouble installing cmake to ubuntu 14.04 I've tried cloning from the github repo and downloading the zip...
View ArticleRelative scale in monocular visual odometry
Hello Everyone. Can anyone suggest how to obtain the scale in monocular visual odometry (ego-motion estimation)? Any document, link and/or codes are welcome.
View ArticleApproximation method in cv::undistortPoints
The function `cv::UndistortPoints()`, applies reverse lens distortion to a set of observed point coordinates. The models for lens distortion available in openCV are not invertible, which means an...
View Articleopencv and X11 support on Mac OS
Hello, I wrote an image processing tool based on opencv which runs on iMac. I would like to access the program remotely from a ubuntu machine and I am having troubles with X11. I have installed Xquartz...
View Article