How can we correct the camera calibration tutorial?
Dear OpenCV developpers, I've checked the camera model used in openCV and it appears that there are inconsistencies between...
View ArticleContact site admin for account issue
Hi, how may I contact the site admin in order to retrieve an account? It wasn't hacked, but I had an issue with my account and I don't receive anything from the account retrieval system (with the email...
View ArticleHow to statically initialize OpenCV4Android and support all available devices?
Hey, I decided to statically initialize OpenCV4Android 3.00 in my app due to OpenCV Manager having some bugs and not installing correct libs for some devices. I have already confirmed that with basic...
View ArticleEye detection in android
Hi, I am new to OpenCv. Can somebody tell me how to do eye detection in android using opencv. Any tutorial link or Any complete code if you have that detect eyes that will be very help full. Thanks in...
View ArticleStitching from "leaveBiggestComponent" rejected Images but have orientation...
greetings, I'm building a stitching app for mobiles. Sometimes images are rejected (not included in the list) from the leaveBiggestComponent function. But I have the orientation of all images from the...
View ArticleProjects on open.
Please let me know some easy stuff to learn for OPENCV. Please recommend some videos or material for beginners to quickly learn for OPENCV
View ArticleWhy has DisparityWLSFilter been removed from OpenCV 3.0.0?
I've been trying to build on OpenCV 3.0.0 the extra modules sample that uses post filtering to improve the stereo matching depth map, but the support functions such as DisparityWLSFilter generate...
View ArticleInvali arguments in ConvexHull Android ndk and Opencv
Hello All, I have this C ++ OpenCV code in my jni folder of android application hello-jni.cpp. I just want to find and draw convexhull but cause of hull[i] the convexhull method generate an error...
View Articlecan anyone help me to know mv /tmp/my_project.cpp . means?
I am installing Opencv, CvBlob on Raspbian OS. there were list of build instruction which i was following and found this line. Thanks in advance
View ArticleHow to make auto-adjustments(brightness and contrast) for image Android...
i'm using OpenCV for **Android**. I would like to know,how to make **image correction**(auto adjustments of brightness/contrast) for image(bitmap) in android via OpenCV or that can be done by native...
View ArticleJava: How to set parameters to ORB FeatureDetector?
As it says in the [documentation](http://docs.opencv.org/modules/features2d/doc/feature_detection_and_description.html#orb), in OpenCV there is a constructor called ORB, where I can specify a lot of...
View Articleimread not reading in BMP
Hello all, I'm trying to read in a .bmp file using the following code: cv::Mat image1 = cv::imread("SmallDog.bmp", CV_LOAD_IMAGE_COLOR); And it is failing everytime. I can read in .jpg files just fine,...
View ArticleMax-Clique Approximation cv::Mat summation
I have a visual odometry routine where I am attempting to perform inlier detection. I have an nxn square cv::Mat consistency matrix, where cell ij is 1 if the absolute distance difference between the...
View ArticleGroup glyphs images from a book page scan
Hello! I am a type designer working on a type revival project. I have a bunch of high quality scans from a book printed with movable type. My goal is to group all the image of the same glyph in a...
View ArticleHardware Support and Requirements for OpenCV
Hello all, I'm working on a project which should run OpenCV on a mobile platform. I think to use ARM processor + DSP/GPU. TI C6000 series DSPs had support for OpenCV up to 2012 but they no longer...
View ArticleBackground averaging not working
I'm working on a problem where I'm trying to use background averaging to see what the frame looks like in a beehive behind the bees. I've been trying to use standard averaging (I take an image every 1...
View ArticleVS 2015 internal error C1001 building the latest 3.0.0-dev release
The latest OpenCV 3.0-dev download at https://github.com/Itseez/opencv/archive/master.zip is causing an internal compiler error in VS Community 2015. I am compiling on Windows 10 for 32-bit windows. I...
View ArticleY channel of Ycbcr not dispalyed correctly
I set up ROI for eye region . I converted this region to ycbcr channel , and I splitted Y channel from it. when I show the ycbcr channel the eye area is showed in normal ycbcr colors, My problem is...
View ArticleBug in MJPG endcoder/decoder ?
Hi, I have got a problem to retrieve video size using MJPG encoder Here is my program VideoWriter vid1; Mat im(480,640,CV_8UC3); vid1.open("test.avi", CV_FOURCC('M', 'J', 'P', 'G'), 20, Size(640,480),...
View ArticleResearch project captcha
Hi all, I'm currently doing a research project on OpenCV and captcha decoding for my it department of the University. Since I'm a beginner with opencv I can't get a fully clear image with just the...
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