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45 discussions - 129 posts

  • Hello everyone, This question might be repeated but i am in a pinch right now so please try to understand. I have been trying to work with android+opencv for couple of months now but was unable to to ...
    Rushikesh KhatkhedeRushikesh Khatkhede
    Feb 22, 2012 at 8:03 am
    Oct 7, 2012 at 10:55 pm
  • Hi I followed your instructions but the main.xml keeps reporting the cannot find the sampleview class. The app will crush unless I put the trueview before the fakeview. I use the fakeview holder for ...
    Zhou XueZhou Xue
    Feb 13, 2012 at 4:57 pm
    Dec 14, 2012 at 7:22 am
  • What's your phone model and which android version are you runing? El jueves 5 de enero de 2012 13:16:44 UTC-6, Matt escribió:
    Feb 27, 2012 at 3:00 am
    Jun 5, 2012 at 3:06 am
  • Hello I'm new in the world on Android and OpenCV. I have some knowledge about Computer Vision (so little ). Well I followed the tutorial here: ...
    Feb 25, 2012 at 8:22 pm
    Apr 8, 2012 at 5:37 am
  • thanks a lot. when i run createsamples.exe then i get some error as : The program can't start because HighGUI.dll is missing from your computer. Try reinstalling the program to fix this problem. The ...
    Feb 13, 2012 at 7:50 am
    Mar 7, 2012 at 9:35 am
  • I'm running into problems cropping an image using the Android OpenCV binaries. This is what I'm doing to try to crop the upper left quadrant of the image: processFrame(byte[] data) { ...
    S ColemanS Coleman
    Feb 27, 2012 at 5:54 pm
    Feb 29, 2012 at 5:01 pm
  • Sorry for reviving an old thread, but I'm having this exact same problem, and the OPENCV_CAMERA_MODULES:=off fix didn't work for me. Is there anything else I can try? Possibly a way to tell Eclipse ...
    Tyler CoffeyTyler Coffey
    Feb 28, 2012 at 5:43 am
    Feb 29, 2012 at 12:51 pm
  • Hey, I'm calling the android camera and this is the function that handles the activity result. for some reason the Utils.bitmapToMat(bitmap) gives me a very low resolution Mat (160,204). I do beleive ...
    Adiel ashrovAdiel ashrov
    Feb 28, 2012 at 9:36 am
    Feb 29, 2012 at 12:44 pm
  • I would like to convert an image to a black and white image the way it is showing in the following window. can anyone explain the procedure. -- Thank-you with Regards, Rushikesh Khatkhede
    Rushikesh KhatkhedeRushikesh Khatkhede
    Feb 27, 2012 at 9:36 am
    Feb 27, 2012 at 5:50 pm
  • Folks, I am writing c++ opencv code through jni in Android. Most of the things work seamlessly however I am hitting a very basic problem. When I try to load a png file stored on sd card using imread, ...
    Pramod SharmaPramod Sharma
    Feb 27, 2012 at 8:56 am
    Feb 27, 2012 at 9:09 am
  • I got a samsung infuse. Previously i developed with a Nexus One, but wanted to test out the infuse because it has a huger processor, and wanted to see if i could get higher framerates out of opencv. ...
    Feb 17, 2012 at 3:40 am
    Feb 19, 2012 at 6:41 pm
  • Hey everyone, I tried plowing through all the various posts and documentation about bg subtraction, finding contours, drawing contours, getting blobs, filtering by area, bounding boxes and after a ...
    Feb 17, 2012 at 3:29 am
    Feb 17, 2012 at 3:41 pm
  • Hey, Is there a way to translate this code to openCV android code? I couldn't find template match function in the .jar file. If you have any better ideas on how to match a picture i've taken of a ...
    Adiel ashrovAdiel ashrov
    Feb 20, 2012 at 7:27 pm
    Oct 16, 2012 at 5:19 pm
  • same issue here
    Feb 17, 2012 at 2:26 pm
    Feb 27, 2012 at 2:25 pm
  • Hi, I am working on argumented reality application in android where i want to detect real world objects. I went through few SDKs for argumented reality like the Qualcomm QCAR, Metaio, AndAR but all ...
    Feb 20, 2012 at 10:38 am
    Feb 22, 2012 at 9:57 am
  • Hey everyone, I have s small app which takes a picture and i want to threshold it. for some reason the function Utils.matToBitmap crashes when I use it after the threshold, any thoughts on how to ...
    Adiel ashrovAdiel ashrov
    Feb 19, 2012 at 4:37 pm
    Feb 20, 2012 at 10:03 am
  • Hello all, I'm trying to follow this tutorial ...
    Mina FouadMina Fouad
    Feb 12, 2012 at 5:20 pm
    Feb 14, 2012 at 10:04 am
  • Has anyone successfully multi-threaded an image processing task? I'm starting to research multi-threading on Android but it's a little intimidating and I'm not sure which method I need to pursue. ...
    Feb 27, 2012 at 1:23 am
    Mar 7, 2012 at 6:34 am
  • Hi, I want to extract a table from an image what are the steps to do it? Please find the attached image. I want to find the position of the table and then extract that part of image for further ...
    Feb 29, 2012 at 5:10 pm
    Mar 3, 2012 at 12:08 am
  • I'm new to OpenCV and I'm interested in using it for porting over a matlab script for image stitching to an Android application. I'm uncertain if it is better for me to code using JavaCV or Java API. ...
    Feb 29, 2012 at 4:36 am
    Feb 29, 2012 at 6:32 am
  • Maybe I cannot see for looking but is it possible to change the opencv camera zoom and autofocus values. Or do I have to use the standard Android camera implementation.
    Feb 25, 2012 at 10:39 am
    Feb 27, 2012 at 9:10 am
  • hI, i am trying to segment a still picture in android but when i convert the matrix into bitmap then it get crash... my result from grabcut matrix is 214X235 CV_8UC1 , kindly help me. Rect o=new ...
    Dani WolvorineDani Wolvorine
    Feb 21, 2012 at 8:26 am
    Feb 21, 2012 at 10:40 am
  • Hi I am writing a OpenCV code in C using JNI. I am completely new to JNI so I am facing difficulty in converting double to JdoubleArray. Below is a snippet of my code: JNIEXPORT jobjectArray JNICALL ...
    Feb 20, 2012 at 7:06 pm
    Feb 21, 2012 at 7:46 am
  • Hey, I'm looking for an idea on how to segment part of the picture (after I've thresholded it); I have a picture of a card and i need to isolate the card frame. Thank you Adiel
    Adiel ashrovAdiel ashrov
    Feb 20, 2012 at 3:08 pm
    Feb 20, 2012 at 7:08 pm
  • Hi I am capturing live frames from android camera, processing them using Opencv and displaying them using canvas. Now I want to encode the processed frames into a video and store them into the SD ...
    Feb 18, 2012 at 9:22 am
    Feb 19, 2012 at 2:40 pm
  • I am trying to detect skin color in live camera recordings and then upload them on a remote server. for this I am able to segment skin color from the images and display over the camera canvas on the ...
    Feb 16, 2012 at 6:54 am
    Feb 18, 2012 at 8:05 am
  • Is there any OTHER tool out there that can be used for cropping positive image samples for haartraining, apart from image clipper and objcect marker?? I've been trying to buld those two for hours, i ...
    Thuita WachiraThuita Wachira
    Feb 15, 2012 at 2:34 pm
    Feb 16, 2012 at 8:32 am
  • I'm doing some stuff w/ Orb on Android right now. If you get the latest version off the trunk it's a fair bit faster, and they fixed the issue where no points are detected around the border (but you ...
    Feb 12, 2012 at 5:20 pm
    Feb 13, 2012 at 5:28 pm
  • Hello, i have a question about undistorting points in android. In the opencv documentation there is a c++ function that can undistort points. i am missing that function in the android wrapper. i only ...
    Feb 29, 2012 at 12:52 pm
    Feb 29, 2012 at 1:09 pm
  • Can someone help me and tell with methods of opencv can I use to compare them?
    Feb 29, 2012 at 4:36 am
    Feb 29, 2012 at 5:02 am
  • Hi, all: I'm wondering if it's possible for me to build our own OpenCV-trunk- android-bin, rather than by downloading OpenCV-2.3.1-android-bin from online? For the reason that I always use OpenCV ...
    Feb 28, 2012 at 12:42 pm
    Feb 28, 2012 at 12:52 pm
  • I have a problem running tutorial2 (Advanced - Mix java 9+ native opencv) sample on HTC incredible S. Other samples work great. The app terminates immediately with this message: "The application ...
    Feb 25, 2012 at 7:30 am
    Feb 27, 2012 at 8:56 am
  • I have a problem when reading a picture and displaying it . here is my code: File imgFile = new File("/sdcard/speed.png"); if(imgFile.exists()) { Mat speed = ...
    Alin TurcuAlin Turcu
    Feb 27, 2012 at 8:23 am
    Feb 27, 2012 at 8:52 am
  • Hello I have problems implementing tutorial 1. At step 3 I have the fallowing errors: -vm could not be found <path could not be found http://imageshack.us/f/638/stanfortstep3tutorial1.png/ and the ...
    Vali BaciuVali Baciu
    Feb 25, 2012 at 10:39 am
    Feb 26, 2012 at 7:25 pm
  • Thanks Adiel
    Adiel ashrovAdiel ashrov
    Feb 25, 2012 at 5:10 pm
    Feb 25, 2012 at 6:02 pm
  • Hello All, I have a problem that I want to create a face detection app and I have implemented open cv for the same but the problem is that in OpenCV sample of FaceDetection is based on Video but I ...
    Sanat PandeySanat Pandey
    Feb 21, 2012 at 9:17 am
    Feb 21, 2012 at 9:24 am
  • Hello, After saving a picture either using "Highgui.imwrite" or "FileOutStream" I can not see the file in destination folder (e.g / sdcard/mynewpic/) for few minutes even more. (by restarting device ...
    Alireza AlirezaAlireza Alireza
    Feb 19, 2012 at 4:37 pm
    Feb 19, 2012 at 9:03 pm
  • I'm trying to use the opencv_java lib in my application on android. The problem is in the following: The file libopencv_java.so compiled with NDK6 loads every time without any issues. When I try to ...
    Alexander SerebryakovAlexander Serebryakov
    Feb 12, 2012 at 5:20 pm
    Feb 13, 2012 at 9:20 am
  • I have tried opencv sample programs but the onPreviewFrame() is never called to process frames, it works fine on emulator; does anyone see such issue on ICS?
    Feb 12, 2012 at 4:04 pm
    Feb 13, 2012 at 7:07 am
  • Hi, Im trying to develop some applications for android on pandaboard using opencv. I would like to know which other cameras can be used on pandaboard other than the logitech pro 9000 specified. ...
    Srijith hsSrijith hs
    Feb 29, 2012 at 6:25 am
    Feb 29, 2012 at 6:25 am
  • Hi, Can anyone please suggest a way of calculating essential matrix from corresponding points in two images [having the intrinsic parameters in hand]? i don't wan't to use "findFundamentalMat" ...
    Erez FarhanErez Farhan
    Feb 22, 2012 at 3:06 pm
    Feb 22, 2012 at 3:06 pm
  • Hi I am using openCV android binary . No samples is not working on my LG Optimus Big( LG LU6800) phone. My android os version is 2.2.2. When I download and start I can see the black screen. Is there ...
    Santanu PaulSantanu Paul
    Feb 20, 2012 at 8:20 am
    Feb 20, 2012 at 8:20 am
  • If I want to calculate the RGB histograms of an image, which of the following is correct? a) splits the channels, b) inputs the image directly. Also, can anyone shows me some examples of how to draw ...
    KT TsangKT Tsang
    Feb 16, 2012 at 7:13 am
    Feb 16, 2012 at 7:13 am
  • Hello everybody! Those who work with OpenCV from the trunk, heads up please! OpenCV has migrated to a new issue tracker and SVN, details are below. Trac and the old Subversion are open for reading, ...
    Kirill KornyakovKirill Kornyakov
    Feb 14, 2012 at 7:54 am
    Feb 14, 2012 at 7:54 am
  • Thank you guys for all your hard work! I had a problem that I was struggling with all day, but managed to get my own answer to it, but I figured I might as well share it with people in case they run ...
    Feb 14, 2012 at 7:23 am
    Feb 14, 2012 at 7:23 am
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44 users for February 2012

Andrey Pavlenko: 23 posts Kirill Kornyakov: 9 posts Adiel ashrov: 8 posts Andy: 8 posts Rui Marques: 6 posts PHÚC KHƯU THIỆN: 5 posts Rushikesh Khatkhede: 5 posts Geomod: 4 posts S Coleman: 4 posts Alireza Alireza: 3 posts Aman Agarwal: 3 posts Andrey Kamaev: 3 posts Mina Fouad: 3 posts N: 3 posts Pramod Sharma: 3 posts Thuita Wachira: 3 posts Bogflap: 2 posts Dani Wolvorine: 2 posts Dschaudel: 2 posts Hanoun: 2 posts
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