javacv

问题 I have this code, which works fine, but there is just one issue which I am getting: When we search nearby places, it appends the new nearby search markers with the old markers, screenshots are attached in these links. Here I have searched the nearby banks: http://prntscr.com/aouxra It has successfully shown, but now if I search another nearby place like hotel, it will append its markers with the banks markers which has been searched previously, like this: http://prntscr.com/aouz23 I want to

问题 I'm using JavaCV on Android, and I'm following along with this sample activity. https://code.google.com/p/javacv/source/browse/samples/RecordActivity.java However the line that i'm having trouble with is recorder.record( ShortBuffer.wrap(audioData, 0, bufferReadResult). ); But i'm getting exceptions for that line as it is expecting a Buffer[]. However reading into Buffer and ShortBuffer, I'm not sure why it wont take it. Declarations for record() public void record(com.googlecode.javacv.cpp

问题 I have run this code. It seems to be that result.png is not generated as a result: public class ImageStitching { public static void main(String[] args){ MatVector images = new MatVector(2); images.put(0,cvLoadImage("sample1.png")); images.put(1,cvLoadImage("sample2.png")); IplImage result = new IplImage(null); int status = stitcher.stitch(images,result); if( status == stitcher.OK ) { cvSaveImage("result.png", result); } result = cvLoadImage("result.png"); final CanvasFrame canvas = new

问题 I'm trying to record video by checking each frame of camera preview to bitmap with quality ARGB_8888. As it required 4 channel, Created IplImage with channel 4 too. Now the output have two major problems : 1) Bitmap that created from IplImage have grayscale. even if I have converted it from BGR2RGBA. 2) 4 channel IplImage gave me bitmap (divided in 4 parts) with same screen. Let me put my code over here. @Override public void onPreviewFrame(byte[] data, Camera camera) { if (yuvIplimage !=

问题 This error comes up when I click my Capture button. OpenCV Error: Unspecified error (could not find a writer for the specified extension) in cv::imwrite_, file C:\build\2_4_winpack-bindings-win64-vc14-static\opencv\modules\highgui\src\loadsave.cpp, line 275 Exception in thread "AWT-EventQueue-0" CvException [org.opencv.core.CvException: cv::Exception: C:\build\2_4_winpack-bindings-win64-vc14-static\opencv\modules\highgui\src\loadsave.cpp:275: error: (-2) could not find a writer for the

问题 I am using an android v21 device to stream data to a javafx application. Its working fine but I have about 2 seconds of latency. As of now the basic transportation goes like this android Cameratompegtest.class unkown latency android packetizer(udp) 10 millis windows depacketizer no buildup of data in buffers windows ffmpeg framgrabber unkown latency javafx imageview <1 millis My data stream to my desktop and my packetizer is much faster than my frame rate and is often just waiting. There is

问题 I am trying to implement a tap to record feature like in vine. A sample for handling recording (not touch to record) provided in javacv is https://github.com/bytedeco/javacv/blob/master/samples/RecordActivity.java. I am trying to modify it so that in onPreviewFrame method frames are added to buffer only when user has his finger placed on screen. These frames are then tried to be combined into final video in stopRecording method. The issue is that if I set the timestamp as given in below code

问题 I am using javacv library for video recording http://code.google.com/p/javacv/ in my project i need to use opencv_highui.cvLoadImage function but on this line i am getting error like 11-20 14:58:38.697: D/dalvikvm(7587): No JNI_OnLoad found in /data/app-lib/com.javacv.recorder-2/libopencv_highgui.so 0x42474478, skipping init 11-20 14:58:38.697: W/dalvikvm(7587): Exception Ljava/lang/UnsatisfiedLinkError; thrown while initializing Lcom/googlecode/javacv/cpp/opencv_highgui; i am able to use

问题 i want to detect the skew level from an image. I've the following code: public void analyse(CvMat img) { rows = img.rows(); cols = img.cols(); // create edge-map from rois CvMat edgeMap = cvCreateMat(rows, cols, CV_8UC1); cvCanny(img, edgeMap, 100, 400, 3); // transform to hough CvMemStorage storage = cvCreateMemStorage(0); lines = cvHoughLines2(edgeMap, storage, CV_HOUGH_PROBABILISTIC, 1, EuclideanDistance euclideanDistance = new EuclideanDistance(); double maxDistance = Double.MIN_VALUE;

问题 Hi new to OpenCV and I am using JavaCV plugin in Unity to detect floorplan. I want to detect the position of windows, doors and few other objects in the floorplan image. First I used template matching for detection, but later I figured out it wont work if object is placed in different orientation or size of object is mismatched. I am using the device camera to capture the image hence image may get a little skewed hence I abandoned this technique. Following is the reference image and the