Android platform, cvCreateFileCapture return null
IDE: Android studio Source code: Java + JNI + C I would like to use cvCreateFileCapture in c section. However, cvCreateFileCapture return null. Is it possible to use cvCreateFileCapture for opencv343...
View ArticleEye gaze detection in android
I'm looking to perform real time gaze tracking using the front camera of an android phone. My goal is to track the user's gaze while the user moves his head from left to right and tries to maintain the...
View ArticleParsing error lbfmodel.yaml file in android
I am trying to detect facial points using FacemarkLBF in android app. I have downloaded the lbfmodel.yaml model file from [here](https://github.com/kurnianggoro/GSOC2017/raw/master/data/lbfmodel.yaml)...
View ArticleHow to extract signature from driving license card?
Hello, I am developing license verification application in android. So right now i want to extract signature from driving license front side using OpenCV in android. Please suggest any best solution.
View Articlefind contours in an image?
I am build an apk for find contours in an image but unable to find it. Please suggest me how to do it. thanks in advance.
View ArticleUse OpenCV on Android without Manager
I am developing **face-detection** application using **OpenCV-2.4.2** in **android**. while i'm trying to run **face-detection** it says, "OpenCV Manager is not installed, please try to install it."...
View ArticleOpenCV android real time object detector
Hello, I am build an application which is provide functionality to user real time object detection. but i got following exception. java.lang.NullPointerException: Attempt to read from field 'long...
View ArticleFinding height difference with precision of 1mm using open cv
I wants to find the height difference of doors of a refrigerator using open CV with precision of 1 mm. is it possible to achieve this using openCV. I am new to openCV so I wants to know whether the...
View ArticleSomeone have already compiled Opencv (any version) with NEON ?
Hello everyone, Someone have already compiled Opencv, any version with NEON optimizations ? Someone have already compiled it with STL "c++_static" or "c++_shared" ? Thanks a lot advance, and best Regards.
View Articlefind contours in an image
I want to detect contours in the image. should I use canny detection , how can I get this output. Thanks.
View ArticleHow to use Aruco in Android?
Hi, I was not able to find the Aruco package documented here https://docs.opencv.org/trunk/javadoc/org/opencv/aruco/package-summary.html (v.3.4.1) in the SDK provided here...
View ArticleOpenCV compareHist and matchTemplate not working properly on Android Studio
I've been trying to compare two images and get an output showing the differences among the images. The code seemed to work perfectly on python environment with same logic. But It does not seem to work...
View Articleconverting Lab to RGB
I'm using opencv 3.4.0 and android-studio, I want to apply CLAHE on the L channel so i used the Lab color space, but after applying CLAHE on th L channel i and last i converted the image back to RGB...
View ArticleHow to find wrinkles?
I need to find wrinkles on face and draw lines on wrinkles in android
View Articlesaving image using emulator
I'm using android studio with opencv3.4.0, i'm looking to save image after applying some functions. I'm using bluestacks emulator. all the tuto are working with smartphone but i couldn't find how to...
View ArticleHow to compile opencv(with ffmpeg) for android arm64-v8a
My app’s ANDROID_ABI is arm64-v8a, we need capture a frame from AVI video in native c code, so i select opencv to process the video file. Now, i can't compile opencv wih ffmpeg successfully. Who can...
View Articleface recognition for android
I would like to try out opencv face recognition for android...I have worked with android but i am totally noob in case of opencv. I need to build an app that would recognize a face by comparing it to a...
View ArticleRemove background from canny image in android opencv
Hello, i want remove background from captured image. As of now i am capture usa driving license image and convert it into canny image. Here bellow is my output image so i want to remove rest of all...
View ArticleDNN.net.forward() in Android
String model = getPath("model.net", getApplicationContext()); net = Dnn.readNet(model); Mat frame = inputFrame.rgba(); // Imgproc.cvtColor(frame, frame, Imgproc.COLOR_RGBA2RGB); // Forward image...
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