Android Studio, binarization and morphology. with OpenCV
Hello, I'm new to the forum, I program under **android studio**, but I'm new in **OpenCV**, and I need to create an application that apply some filters to an image, especially the **binarization and...
View ArticleWhat versions of Opencv are compatible with Visual Studio 2015?
I was recently working with VS 2015 and opencv version 2.4.13 . I couldn't load cascades due to dll errors, I tried many solutions but no luck. I came to the conclusion it might be the opencv version.
View ArticleUpdating openCV for android
I am developing an android app that uses openCV 2.4.11 and I would like to change the openCV library to 3.0+ version. So that it works on 64bits devices, but i have no idea how to do this? i'm using...
View ArticleCustom Allocator support in OpenCV 3.1
Hi, is there a way to supply a custom allocator to OpenCV 3.1? If there is, is it guaranteed that OpenCV uses it for ALL allocations. No more malloc and/or new? Regards! Gabriel
View ArticleImage stitching camera translation
Hello, I need some help with image stitching aerial images from UAV. Since OpenCV natively does not support translation, just rotation, I'd like to extend structrure CalcRotation from...
View ArticleOpenCV3, Python3, Missing xFeatures
On Ubuntu 16.04 trying to build OpenCV3.1.0 with the contrib module. I have a clean build with CUDA fully enabled (which is awesome!). I can get the python 3.x bindings to build without issue, but can...
View Articlein android studio is the same code of pure java?
i need make a little app in android studio that make a image in binary, but only find code in java pure, i can use this?
View ArticleConvert NV12 to RGB
Mat yuv(720,1280, CV_8UC3);//I am reading NV12 format from a camera Mat rgb; cvtColor(yuv,rgb,CV_YUV2RGB_NV12); The resolution of rgb after conversion is 480X720 cvtColor(yuv,rgb,CV_YCrCb2RGB); The...
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Arsenal Vs Bolton 2011 Highlights
Arsenal vs Bolton 3-0 Highlights46' [1-0] Robin van Persie71' [2-0] Robin van Persie89' [3-0] Alexandre SongWinning the English Premiere League sixth-round match over Bolton Wanderers at Emirates...
View Articleopencv Python interface crashes while terminating
Hi - I installed opencv 3.1 on ubuntu 16.04 with contrib modules. I used cmake (with the following options) to generate the makefile. I used CUDA_NVCC_FLAGS="-D_FORCE_INLINES" for a GCC 5.4 issue with...
View ArticleHow to set webcam codec in OpenCV 3.1.0 Python?
I have a problem with my webcams using the uncompressed YUYV codec in OpenCV Python which makes it so that I have horrible frame rates. I would like to set the codec to MJPG, but I can't seem to...
View ArticleHow to read a series of images with python using OpenCV?
I don't know the way to load multiple images with python using OpenCV's API
View Articleopencv build issues in VS2010
Hi I am trying to build opencv for windows from latest opencv source. I am using cmake with Visual Studio 2010 generator. When i try to build from visual studio solution, i am getting some errors like...
View Articleface tracking with ip camera
Hello everyone, I'm new with opencv and I'm developing an opencv project to performance a face detection. I have already reached the face detection with my axis ip camera but now, I would like to track...
View ArticleClassifier - which images is made
I have some classifiers file.xml, is there a way to know from which images are trained? The name of the file is usually not clear! Those are the classifiers:...
View ArticleAntialiasing in warpPerspective
I have noticed that there is a lot of aliasing when I perform downsampling (resize) or distortions on an image (warpPerspective) using any of the interpolation methods. Is this a limitation of the...
View ArticleHow to efficiently detect and track this marker?
Given the following images, I want to detect the location of the marker.   - **GOAL:** find...
View ArticleAssertion failure durring defishing in initUndistortRectifyMap
I'm trying to do fish an image by providing "camera_matrix" and "distortion_coefficients" to cv::fisheye::undistortImage. problem is I'm getting Assertion error. Reason is the distortion coefficients...
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