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2018-09-29 03:38:16 -0500 commented answer How to crop only the form on this image? opencv 3.2

@buubuu I have edited the code.

2018-09-29 03:35:15 -0500 edited answer How to crop only the form on this image? opencv 3.2

@buubuu you can do like this, #include <iostream> #include <opencv2/highgui/highgui.hpp> #include <openc

2018-09-29 03:03:29 -0500 commented answer How to crop only the form on this image? opencv 3.2

@buubuu sorry for late reply. I thought form in your image wont be tilted as per given in first image. It is easy to ext

2018-09-19 23:47:16 -0500 commented answer Detect only a part in a video input

Okay. Welcome!!

2018-09-19 07:15:02 -0500 commented question How to crop only the form on this image? opencv 3.2

@buubuu upload your image here. You need to adjust threshold value once correctly. To make it robust you can use adaptiv

2018-09-19 07:13:15 -0500 received badge  Commentator
2018-09-19 07:13:15 -0500 commented question Fisheye Stereo Rectification and Disparity

Check calibration lecture from computer vision fundamentals by Dr. Mubarak Shah

2018-09-19 06:57:19 -0500 commented question How to crop only the form on this image? opencv 3.2

@buubuu upload your image here.

2018-09-19 06:23:44 -0500 commented question Fisheye Stereo Rectification and Disparity

and try to image at different ranges, like very close , normal, very far. Also take images at edges. Hope so this should

2018-09-19 06:20:29 -0500 commented question Fisheye Stereo Rectification and Disparity

Okay. I think you should try to take dataset properly. You chess board should cover all the regions in fov. Try to take

2018-09-19 05:59:34 -0500 commented question Fisheye Stereo Rectification and Disparity

How many stereo pairs you are using for calibration ? Actually opencv fisheye module can calibrate fisheye image around

2018-09-19 05:47:41 -0500 commented answer RTP timestamp for OPENCV

@Kristi986 This is not the answer.

2018-09-19 05:36:31 -0500 commented question Fisheye Stereo Rectification and Disparity

@yeser their is something wrong with your extrinsic and intrinsic parameters. What is the FOV of your fisheye image? Try

2018-09-19 05:35:22 -0500 answered a question Fisheye Stereo Rectification and Disparity

@yeser their is something wrong with your extrinsic and intrinsic parameters. What is the FOV of your fisheye image? Try

2018-09-19 02:56:24 -0500 commented question Multiple Videocapture object for a new written single video

Okay so that is serial not parallel. That will be slow.

2018-09-18 05:48:58 -0500 received badge  Supporter (source)
2018-09-18 03:44:44 -0500 commented answer Detect only a part in a video input

Whatever I have understood from your question and video. I have written my answer accordingly.

2018-09-18 03:41:22 -0500 answered a question Detect only a part in a video input

@uraqtlee You can do like this, #include "opencv2/imgproc/imgproc.hpp" #include <opencv2/highgui/highgui.hpp> #in

2018-09-18 02:19:57 -0500 commented question the result in c++?

Please write your question properly. This doesn't make any sense. Please ask question related to opencv.

2018-09-18 02:18:55 -0500 received badge  Critic (source)
2018-09-18 02:18:45 -0500 commented question the result in c++?

Please write your question properly. This doesn't make any sense. Please question related to opencv.

2018-09-18 00:38:13 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 you want to me to edit his code for you ? I will ask you to again go through the explanation of his blog. This

2018-09-18 00:35:13 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 you want to me to edit his code for you ?

2018-09-17 06:22:45 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 You know multi-threading ? Specify which line you are not understanding. Try to check online tutorial on multi-

2018-09-17 06:22:02 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 You know multi-threading ? Specify which line you are not understanding. Try to check online tutorial on multi-

2018-09-17 06:21:09 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 You know multi-threading ? Specify which line you are not understanding. Try to check online tutorial on multi-

2018-09-17 06:18:44 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 Where is C? You know multi-threading ? Specify which line you are not understanding.

2018-09-17 01:55:05 -0500 commented question finding corner point of each object

@tejas Check approxPolyDp opencv fuction.

2018-09-17 01:22:53 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 follow below blog. Link: https://putuyuwono.wordpress.com/2015/05/29/multi-thread-multi-camera-capture-using-o

2018-09-17 01:17:39 -0500 commented question Multiple Videocapture object for a new written single video

capture it parallel using multithreading.

2018-09-17 00:37:36 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 From your question, what I am understood is that, you have 4cameras and you have to take video from 4 cameras.

2018-09-17 00:35:53 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 From your question, what I am understood is that, you have 4cameras and you have to take video from 4 cameras.

2018-09-17 00:32:26 -0500 commented question Multiple Videocapture object for a new written single video

@reso737 From your question, what I am understood is that, you have 4cameras and you have to take video from 4 cameras.

2018-09-17 00:23:16 -0500 commented question OpenCV real-time tracking only QrCode

@minimanimo.sorry for late reply. I was busy with my convocation. You can do like this, link: https://jayrambhia.com/blo

2018-09-13 10:06:25 -0500 commented answer How to crop only the form on this image? opencv 3.2

There are some good blogs. 1. Harris blog 2. OpenCV SRF 3. Aishack. There are a good list of resources mentioned here.

2018-09-12 06:15:01 -0500 edited answer Turning off auto gain and exposure.

First disable auto exposure mode and then manually set the exposure to the desired value. you can use this following sni

2018-09-12 06:14:37 -0500 edited answer Turning off auto gain and exposure.

First disable auto exposure mode and then manually set the exposure to the desired value. you can use this following sni

2018-09-12 04:54:15 -0500 commented question how to find a external shape of human contours ?

Where is the image? Please upload the image and your code.

2018-09-12 02:51:59 -0500 commented question OpenCV real-time tracking only QrCode

@minimanimo I will first answer que 2. ans2: I am not discarding some frames. I am saying, here we are detecting 1st fra

2018-09-12 02:13:06 -0500 answered a question How to crop only the form on this image? opencv 3.2

@buubuu you can do like this, #include <iostream> #include <opencv2/highgui/highgui.hpp> #include <openc

2018-09-10 05:12:21 -0500 commented question VIDEOIO ERROR: V4L: can't open camera by index 0

Type following command on terminal to check list of video devices connected to your system. ls ~/../../dev/video* If vi

2018-09-10 00:40:45 -0500 commented question OpenCV real-time tracking only QrCode

@minimanimo You can do this in real time using above algo. Sorry for late reply.

2018-09-10 00:39:09 -0500 commented question OpenCV real-time tracking only QrCode

It is not necessary that you should compare it with static frame(ground truth). See Take first frame as a reference wher

2018-09-06 04:36:47 -0500 commented question OpenCV real-time tracking only QrCode

To track barcode, you can use optical flow or homography. I think this will solve your problem.

2018-09-06 02:47:44 -0500 answered a question How to set CMake options to compile some modules only?

Yes you can set specific flags needed by you. I prefer using GUI or ccmake . Enter following commands in your terminal

2018-09-05 02:06:17 -0500 edited answer Turning off auto gain and exposure.

First disable auto exposure mode and then manually set the exposure to the desired value. you can use this following sni

2018-09-05 02:03:53 -0500 answered a question Turning off auto gain and exposure.

First disable auto exposure mode and then manually set the exposure to the desired value. you can use this following sni

2018-09-05 01:33:08 -0500 commented question Pose of camera from the pose of marker

@slayer2309 you absolutely right. If you are getting so much confused with rotation and translation. Then just create 4

2018-09-05 01:27:08 -0500 commented question SolvePnP With Hidden Points

Nice question. I think there is no way to solve using PnP or homography. As you have lesser point to point correspondenc

2018-09-05 01:21:46 -0500 commented question StereoRectify - does it work

@JT3D have you check estimated R and T are correct. Can you put that matrix over here ?