Why is warpAffine failing silently?
Hi all I'm using warpAffine to rotate an image. Basically I have a rectangular mask that I made from a RotatedRect and I want to rotate the mask so it's side's are parallel to the the sides of the...
View ArticleI have custom C++ opencv code i would like to reuse in android how is this...
I have custom C++ opencv code i would like to reuse in android how is this possible.
View ArticleFilled circle are not detecting
Hello, I am new to opencv and trying to make omr scanner from scratch and have snippet which is supposed to detect filled circles but it is doing quite opposite and detecting unfilled circle. Please...
View ArticleHow to run openCV eye detection android application in a background
How to run openCV eye detection android application in a background
View Articleandroid SLIC superpixel
I'm new android developer. I'm looking to use the superpixel SLIC algorithm on android studio. but after testing my code i got this bug: java.lang.UnsatisfiedLinkError: No implementation found for long...
View Articlehow i can build 'Future baby maker' app in android using OpenCV?
I'm designing an application 'Future baby Predictor'. In this Application, User will upload his image and his partner image and get a predicted future baby image that will be the combination of both...
View ArticleOpenCv Manager App not on Playstore
Hello, I develop a App based on OpenCv Manager App 3.1 But form September this App is non installable from Google Play Store. Why ? Did you plan to re plublsh or I must modify my APp ? Best regards
View ArticleWhy is the result different when using the functions of opencv on mobile and...
use the hogdescriptor compute I have the same input on my computer and on my Android but the output is different. Android was built with arm64-v8a. computer is imac 64bit I want to make such a...
View ArticleHow to control camera FPS java.
I am new to Opencv and i want to read signal from light in my project basically camera works on 30 fps. how can i control fps to sync it with light blinking.
View ArticleHow do I link static .a libraries in an Android Studio project?
Hi, I am having troubles linking the prebuild static libraries in an Android Studio project. I am not even sure if it is possible. Is it? What have I tried? * I create a simple new android studio...
View ArticleIs it possible to combine 3 photos of different focal lengths to make the...
I'm creating a function on my Android app that takes 3 photos at three different focal lengths and will combine the images to make one sharp image. Because each photo has a different focuses there will...
View ArticleProblem when training SVM with ORB descriptors (Android)
Hello guys! I have a folder with 20 positive and 10 negative images and I'm trying to train an SVM through the image descriptors using ORB. I'm getting the following error when calling svm.TrainAuto:...
View ArticleAndroid Camera2 YUV to RGB conversion turns out green?
So I'm getting [Image](https://developer.android.com/reference/android/media/Image.html) objects from Android's Camera2 API, then I convert them to OpenCV Mat objects via their byte buffers. The...
View ArticleSVM predict error on OpenCV4Android
Hi guys, I performed the training of an SVM based on the code below. I used C # for familiarity with the language. I tried doing with Java, directly on Android, but I had some problems as described in...
View ArticleAndroid High speed capture
Hello, I was wondering if there is any attempt to try and use the...
View ArticleNot a god match
Hello everyone! It's my first time with opencCV and I'm trying to get the phone's camera to recognize a stored object whose image is stored in the assets folder. When I find that objection, I want you...
View ArticleDroidCam with OpenCV
With my previous laptop (Windows7) I was connecting to my phone using videoCapture in OpenCV with Visual Studio, and there was no problem. But now I have a laptop with Windows 10, and when I connect...
View ArticleBagOfWords works in C#, but not in C++
Hello guys, As suggested in this [post](http://answers.opencv.org/question/200193/svm-predict-error-on-opencv4android/), I implemented in C++, the same method I used to train my SVM in C #. Initially,...
View ArticleHow to compare images and draw rectangles to mention the difference in Android
I am a newbie for OpenCV and working with Android. For my case I need to find out the differences between two images and mark them with rectangles to the second image like the following image. Kindly...
View ArticleCompare two images and highlight the difference
Hi - First I'm a total n00b so please be kind. I'd like to create a target shooting app that allows me to us the camera on my android device to see where I hit the target from shot to shot. The device...
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