FAQ

Search Discussions

65 discussions - 198 posts

  • Core.inRange(mhsv, new Scalar(0, 50, 170, 0), new Scalar(10, 180, 256, 0), mask); //Core.inRange(mhsv, new Scalar(170, 50, 170, 0), new Scalar(256, 180, 256, 0), mask1); Imgproc.cvtColor(mask, mRgba, ...
    Rushikesh KhatkhedeRushikesh Khatkhede
    Mar 6, 2012 at 8:50 pm
    Mar 13, 2012 at 3:36 pm
  • Good day to you all. The current SVN head for Android build is broken. Is there a web page listing good revisions for OpenCV Android build including the native camera library? The scrip I made to do ...
    Huahang LiuHuahang Liu
    Mar 16, 2012 at 2:03 pm
    Sep 28, 2012 at 7:10 am
  • Hi, I want to implement a simple application (modification of sample2) which is showing what SIFT,SURF,BRIEF and ORB does. the user can simply compare the rotation or scale invariance or the speed. ...
    Csaba BolyósCsaba Bolyós
    Mar 16, 2012 at 2:30 pm
    Mar 23, 2012 at 9:35 am
  • Hi, I've trained some cascades using opencv_traincascade, to use in a android app. I've noted that opencv_performance does not run with these new cascades. I've searched on this group and found this ...
    Giseli RamosGiseli Ramos
    Mar 8, 2012 at 2:25 pm
    Mar 12, 2012 at 12:18 pm
  • How do I create my vector of 2D points?? I can figure out how to use Vector2f on android... how can I create a valid list_of_points? thanks,
    Ster_va7Ster_va7
    Mar 1, 2012 at 7:11 pm
    Mar 2, 2012 at 11:30 am
  • if( Utils.matToBitmap(imgToProcessGray.clone(), bmpOut)) = error. this cease the application.What can I do? I didn't solve the problem. ImageView img=(ImageView) findViewById(R.id.imageView1); Bitmap ...
    AaAa
    Mar 21, 2012 at 4:04 am
    Mar 22, 2012 at 3:43 pm
  • I don't know what to do.. it's really frustrating... My application takes photos when you touch the preview. I can take many photos, but sometimes when i touch the preview to take a photo, there is ...
    Eyal REyal R
    Mar 13, 2012 at 7:09 pm
    Mar 15, 2012 at 11:03 am
  • how do you get the CvEigenDecomposite and CvCalcEigenObjects to works on Android? I didnt find that function in Opencv 2.3.1
    Linh lyLinh ly
    Mar 7, 2012 at 1:02 pm
    Mar 12, 2012 at 12:21 pm
  • Hi, Im trying to get eyes from absdiff mat - two connected components and filter them with conditions: 1. The width of the components are about the same. 2. The height of the components are about the ...
    RomanRoman
    Mar 26, 2012 at 8:12 pm
    Mar 30, 2012 at 1:59 pm
  • With the help of threads : https://groups.google.com/forum/#!topic/android-opencv/RvW3_IsXrOk/discussion and ...
    Rushikesh KhatkhedeRushikesh Khatkhede
    Mar 26, 2012 at 5:39 pm
    Mar 27, 2012 at 9:33 am
  • Mat ConvertToDFT(Mat input) { int N=input.cols()*2; int M=input.rows()*2; Imgproc.cvtColor(input, input, Imgproc.COLOR_BGR2GRAY); List<Mat planes = new ArrayList<Mat () ; Mat padded=new Mat() ...
    Dani WolvorineDani Wolvorine
    Mar 21, 2012 at 7:46 am
    Mar 24, 2012 at 12:14 pm
  • hi, i have created my personal filter which i have tested in C++ and it worked and display it correctly. but after converted my code into java i am unable to understand why it is displaying with ...
    Dani WolvorineDani Wolvorine
    Mar 19, 2012 at 1:33 pm
    Mar 21, 2012 at 12:03 pm
  • Hi, Using an android phone I capture a preview frame in an array of bytes (byte[]). I then send this byte[] through a webservice to a server. On server side I use the C++ version. How can I convert ...
    Glenn ZarbGlenn Zarb
    Mar 16, 2012 at 12:23 pm
    Mar 19, 2012 at 10:22 am
  • "if (Utils.matToBitmap(mRgba, bmp))"-- error , what it return to ? boolean or what ? please reply cause it is for our project
    NoizNoiz
    Mar 2, 2012 at 12:18 pm
    Mar 4, 2012 at 12:00 am
  • here's the command console [2012-03-03 07:40:39 - Sample - 15-puzzle] Android Launch! [2012-03-03 07:40:39 - Sample - 15-puzzle] adb is running normally. [2012-03-03 07:40:39 - Sample - 15-puzzle] ...
    NoizNoiz
    Mar 3, 2012 at 1:08 am
    Mar 3, 2012 at 1:53 am
  • I've been playing with one of the sample apps and can't figure out how to work with the "contours" parameter of the findContours method. It seems to be defined as a List of Mats in Java, which ...
    Gary SamadGary Samad
    Mar 1, 2012 at 7:49 am
    Mar 2, 2012 at 2:35 pm
  • Hi, I am trying to run opencv samples on android 2.3.5. I have followed all the instructions and everything went fine. There is only one problem. In the opencv samples there is a folder called ...
    Mohammad AdilMohammad Adil
    Mar 12, 2012 at 10:45 am
    Jul 18, 2012 at 7:23 pm
  • Hi, In my Android app i have one function that is written in c. This function gets a Mat object and should return a new one. My question is how do I *return* a *Mat* from the native code to Java? ...
    Desi RazarDesi Razar
    Mar 30, 2012 at 2:06 am
    May 19, 2012 at 4:37 pm
  • Hi there, I have added the OpenCV project library to my workspace, included it in my build path, and gone to Right Click Properties Android to Add OpenCV-2.3.1 as a library. However, I am STILL ...
    Mary1010Mary1010
    Mar 24, 2012 at 2:30 pm
    Mar 25, 2012 at 1:53 pm
  • Hi, I'm using OpenCV-2.3.1 for Android on a Samsung Galaxy S2. I was wondering if there was any way to enable the LED flash on the camera when using the following setup: camera = new ...
    Woodstock365Woodstock365
    Mar 15, 2012 at 11:01 pm
    Mar 16, 2012 at 11:27 am
  • Hi, Every time I try to create a new Mat-Object it results in a deadlock. Can’t figure out the reason behind it. Native-Method: #include <jni.h #include <vector #include <android/log.h #include ...
    Desi RazarDesi Razar
    Mar 9, 2012 at 5:20 pm
    Mar 14, 2012 at 5:20 am
  • I use OpenCV library with eclipse and programming by Java for Android. How to determine objects move in any direction? For example, to determine the hand moving to the right or left. thanks in ...
    Danphuc2010Danphuc2010
    Mar 5, 2012 at 7:26 am
    Mar 7, 2012 at 9:33 am
  • Bonjour, Je suis entrant de faire mon projet de fin d’étude intitulé vidéo surveillance mobile sous android, Je suis concentrée depuis deux semaines dans la visualisation de flux de la caméra axis, ...
    Ensi_nanouEnsi_nanou
    Mar 6, 2012 at 11:29 am
    Mar 6, 2012 at 12:25 pm
  • Hey, Can anyone give an example on how to use OpenCv matchTemplate( img, templ, result, match_method ) in the Android OpenCv SDK? Couldn't figure out how and where to call this function and this ...
    Adiel ashrovAdiel ashrov
    Mar 5, 2012 at 12:53 pm
    Sep 24, 2012 at 10:58 am
  • Hi all, Sorry for my newbies question, but I'm unable to find an anwser ! I try to detect circles in an image. I found the HouchCircles method. Here's my code Mat circles = new Mat(); .... ...
    Eric TaixEric Taix
    Mar 3, 2012 at 6:25 pm
    Apr 15, 2012 at 11:07 am
  • I found the option "HAVE_TEGRA_OPTIMIZATION" in the file * http://code.opencv.org/projects/opencv/repository/entry/trunk/opencv/modules/video/src/lkpyramid.cpp ...
    Yan unonYan unon
    Mar 26, 2012 at 4:04 pm
    Apr 6, 2012 at 10:36 am
  • Hi all. I find myself unable to choose between two approaches. I'd like my android app. when presented with a (potentially) diseased leaf, to classify that disease based on its features. Should i ...
    Thuita WachiraThuita Wachira
    Mar 25, 2012 at 8:27 am
    Apr 6, 2012 at 9:30 am
  • Hi, I've tried your app (CVCamera - http://play.google.com/store/apps/details?id=com.theveganrobot.cvcamera) and tried to access the link to the developer website ...
    Yaron MuzikantYaron Muzikant
    Mar 24, 2012 at 2:30 pm
    Apr 6, 2012 at 9:26 am
  • I have being using Opencv 2.3.1 version so well since it was released. In July 2011, i tried to reuse videoWriter as to record video in Android platform. Whereas I was informed by the opencv forum ...
    Douglas HuangDouglas Huang
    Mar 9, 2012 at 6:37 am
    Apr 6, 2012 at 9:15 am
  • I am new in android-opencv. However, I cannot solve the problem of Tutorial 4 - mix native opencv and java from official site. Unfortunately, I want to develop an image progressing application in ...
    KevinKevin
    Mar 9, 2012 at 5:20 pm
    Apr 6, 2012 at 9:13 am
  • I'm working on a facedetect Android application which uses the OpenCV 2.3.1 library. I've found some code which allow me to make a photo on my Samsung GT-P1000 and save it in the gallery. Then I want ...
    Pimmes111Pimmes111
    Mar 21, 2012 at 3:06 pm
    Apr 3, 2012 at 11:23 am
  • i somehow have the same problem with yours. it did work on nexus one and emulator, but not on Droid nor Nexus s, with different error messages. Did you figure out how to deal with it?
    Android-facedetectionAndroid-facedetection
    Mar 28, 2012 at 6:19 am
    Mar 29, 2012 at 6:41 pm
  • i was trying to do real-time face detection on android for FYP. and when i came to OpenCV, i couldn't run even the very beginning sample "Tutorial 1 basic - 0. android camera" on my phone(milestone 1 ...
    Android-facedetectionAndroid-facedetection
    Mar 28, 2012 at 6:19 am
    Mar 29, 2012 at 6:41 pm
  • Hi, i am building application for face recognition (app should be able to find specific face in image). I would like to ask if openCV provides some high level mechanism for doing that? many thanks
    JasomnepilJasomnepil
    Mar 26, 2012 at 4:04 pm
    Mar 26, 2012 at 6:25 pm
  • i try to convert the alogothm of hough in java but it doesn't work. Can someone help me please to rectify this program? HoughButton = (Button)findViewById(R.id.circle); image = (ImageView) ...
    HanounHanoun
    Mar 20, 2012 at 9:22 pm
    Mar 23, 2012 at 10:02 pm
  • hi all, i have a basic question for which i haven't got the answer. The question is that,"android itself provides some api's for image processing, so why is the need for openCV in android? regards ...
    Shree PhaniShree Phani
    Mar 22, 2012 at 5:20 am
    Mar 22, 2012 at 7:55 am
  • Hello, I was following the tutorial on http://opencv.itseez.com/doc/tutorials/introduction/android_binary_package/android_binary_package.html and after importing the sample projects, I cannot run the ...
    TgebruTgebru
    Mar 20, 2012 at 5:33 am
    Mar 20, 2012 at 6:15 pm
  • For Example,I have a RGBA mat for (int i = 0 ; i < getFrameWidth() ; i++) { for (int j = 0 ; j < getFrameHeight() ; j++) { double[] temp = mRGB.get(i, j); { } } } so how can i modify the RGB value of ...
    TsouTsou
    Mar 17, 2012 at 7:22 am
    Mar 17, 2012 at 5:29 pm
  • I am facing the same problem could anyone please reply ?
    Rushikesh KhatkhedeRushikesh Khatkhede
    Mar 14, 2012 at 5:58 pm
    Mar 15, 2012 at 9:55 am
  • Hi all... As part of my application i need to load 2 files from the SD memory and to use template matching on them. The matchTemplate method receives Map instances, so i am loading the images as a ...
    Eyal REyal R
    Mar 13, 2012 at 4:42 pm
    Mar 13, 2012 at 7:06 pm
  • I have checked a lot of threads already but none of them seems to solve my problem. I'm working on a project regarding my study and want to use the OpenCV library with my Android app. Here is a list ...
    Pimmes111Pimmes111
    Mar 8, 2012 at 11:49 am
    Mar 9, 2012 at 8:27 am
  • I am stubbornly trying to get OpenCV to feed into Android ADK which feeds into an Arduino. Right off, this is a bad idea for trying to hack together, both things have weird environmental setup ...
    AndyAndy
    Mar 7, 2012 at 2:58 pm
    Mar 8, 2012 at 11:41 pm
  • Hello, Is there any way to check that image data is null or not after using Highgui.imread()? as I know in Opencv C++, we could check by "if (imge.data == null) " , but here in android opencv, it ...
    Alireza AlirezaAlireza Alireza
    Mar 6, 2012 at 9:28 pm
    Mar 6, 2012 at 9:37 pm
  • I've been able to build this. But I don't know how to use it on real device(expected output?)? When I run it on emulator, all I see is camera gets started and then nothing happens. How to work with ...
    Gaurav MaruGaurav Maru
    Mar 6, 2012 at 8:39 am
    Mar 6, 2012 at 10:36 am
  • Startup will develop an application to index multiple databases of facial images and match with other facial images submitted to the server. What advice can someone offer, Is OpenCV the right choice ...
    AligashAligash
    Mar 28, 2012 at 8:33 pm
    Mar 28, 2012 at 8:33 pm
  • Hi, I have problem with building sample projects on Android Trunk. When I import folder (like in normal opencv binary), there are problems with projects, and OpenCV project can't be set as Library ...
    WitekPLWitekPL
    Mar 28, 2012 at 2:35 pm
    Mar 28, 2012 at 2:35 pm
  • Dear Sir/Madam, I have been trying to use Fisherfaces in combination with OpenCV in Android, but my efforts have been unsuccessful. Today I noticed Philipp Wagner's libfacerec was integrated into ...
    AbozzoAbozzo
    Mar 26, 2012 at 4:04 pm
    Mar 26, 2012 at 4:04 pm
  • I'm getting the following error. This is ubuntu LTE. I do have cmake, gcc and g++ installed and i successfully compiled from the trunk about a month ago. Don't know what's wrong this time. I don't ...
    Rui MarquesRui Marques
    Mar 26, 2012 at 2:08 pm
    Mar 26, 2012 at 2:08 pm
  • Hi, I'm building an Android app, that in one part has to recognize facial features in real time using the camera (the result that I'm looking for--- http://bit.ly/H21sa7). For that, I'm modifying the ...
    ViksaaMkViksaaMk
    Mar 24, 2012 at 10:15 pm
    Mar 24, 2012 at 10:15 pm
  • Hi guys, I need help with mat substraction - im working with face detection sample and need to substract two mats - previous and actual frame. Its for eyes detection. Problem is that those mats are ...
    RomanRoman
    Mar 23, 2012 at 9:57 pm
    Mar 23, 2012 at 9:57 pm
Group Navigation
period‹ prev | Mar 2012 | next ›
Group Overview
groupandroid-opencv @
categoriesandroid
discussions65
posts198
users61
websiteandroid.com

61 users for March 2012

Rushikesh Khatkhede: 27 posts Rui Marques: 24 posts Andrey Pavlenko: 13 posts Roman: 10 posts Dani Wolvorine: 7 posts Csaba Bolyós: 6 posts Eyal R: 6 posts Norman Putra: 6 posts Geomod: 5 posts Andrey Kamaev: 4 posts Desi Razar: 4 posts Giseli Ramos: 4 posts Huahang Liu: 4 posts Iainb: 4 posts Linh ly: 4 posts Ster_va7: 4 posts Zouaoui naourez: 4 posts Hanoun: 3 posts PHÚC KHƯU THIỆN: 3 posts Poncho: 3 posts
show more