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2016-02-13 01:48:05 -0600 | commented question | Speedup predict Can anybody help me please? |
2016-02-13 01:47:28 -0600 | commented question | Speedup predict I tried to use openMP to reduce work time of function, but result became worse. it takes 70-75 msec if i use openMP for predict: |
2016-02-12 10:26:09 -0600 | commented question | Speedup predict No i mean one person. Firstly i run the code with 10 faces for one person and it took 3 msec, then i run 200 faces for the same person and it took 40-45 msec. |
2016-02-11 13:27:35 -0600 | commented question | Speedup predict For 10 faces it takes 3 msec For 200 faces it takes 40-45 msec |
2016-02-11 06:23:44 -0600 | commented question | Speedup predict I am not sure.. Ok i understand the task.. I will measure the time of predict function with 10 faces in training set and with 200 faces. And let you know the results.. |
2016-02-10 04:59:16 -0600 | asked a question | Speedup predict Hello, can anybody share a solution how to reduce operation time for LBPHFaceRecognizer model->predict() method? When i load more than 100 faces to the trainset and after training start the prediction loop, it works very slow. How to increase the perfomance? |
2016-02-09 21:28:29 -0600 | commented answer | YUYV422 to BGR Thank you it works for me |
2016-02-08 23:55:16 -0600 | asked a question | YUYV422 to BGR Good morning! Can anybody help me to convert between YUYV422 and BGR pixel formats? Thank you! |
2016-02-08 05:16:02 -0600 | commented question | convert char** to cv::Mat Can anybody share a working pixel convertion function. I cant find the right solution fo my problem.. |
2016-02-07 22:57:23 -0600 | commented question | convert char** to cv::Mat The broblem is clear for now. How to convert BGR24 to YUYV422 that i can draw it with DrawVideoImage function? Wich CV_8U option to use (CV_8UC1,CV_8UC2,CV_8UC3,CV_8UC4) and wich option to use for cv::CvtColor(dst,src, ????). |
2016-02-07 11:58:23 -0600 | commented question | convert char** to cv::Mat The second part of the problem is in: Becase i think it is not properly copy the char* data from Frame to Mat, maybe it requires some decoding i have no idea. If i put the displayedFrame to imshow() just after i memcpy() it to Mat it will not be drawn properly. |
2016-02-07 11:52:04 -0600 | commented question | convert char** to cv::Mat I feel that the problem somewhere in (char*)displayedFrame.data. I think that the renderer doesnt recognize it as native Frame->data format that is of type char data[0]; |
2016-02-07 11:48:50 -0600 | commented question | convert char** to cv::Mat I don't think copying to a Mat is your problem, but getting the right data. When I look at the Frame struct, I see that there's more than just the data container. So I think GetVideoData(hwnd, (char)&Frame, &dataLen, videofmt,&mediaSpeed); could be the problem. At first I would check (char)&Frame and try something like &Frame->data I am sure that is not a problem, because it works perfect and if i pass the native Frame->data to the renderer it draws the video even with 30 fps without a problems.. But when i am trying to pass the processed Mat to renderer there is a problem: |
2016-02-07 11:26:43 -0600 | commented question | convert char** to cv::Mat Here is the rest of the enum: |
2016-02-07 11:25:06 -0600 | commented question | convert char** to cv::Mat berak, can you explaine please wich way to dig? DECFMT has the following types: |
2016-02-07 11:19:33 -0600 | commented question | convert char** to cv::Mat
&Frame->data doesnt make any sence in compare with Frame->data The same result. |
2016-02-07 11:04:50 -0600 | commented question | convert char** to cv::Mat Function: |
2016-02-07 11:01:00 -0600 | commented question | convert char** to cv::Mat Here is global variables: |
2016-02-07 10:56:44 -0600 | commented question | convert char** to cv::Mat I want to post the full function code. But there is not enough space for comments. I will post it in slices |
2016-02-07 08:42:02 -0600 | commented question | convert char** to cv::Mat |
2016-02-07 08:03:36 -0600 | commented question | convert char** to cv::Mat CV_8UC3 doesn't work for this code(throws c000005): If use CV_8UC3 with this code: Results the almost the same as for CV_8UC1. But now it lookes like triple image. Here is CV_8UC3 with imshow(): Here is CV_8UC3 with DrawVideoIamge(): |
2016-02-07 07:09:18 -0600 | commented question | convert char** to cv::Mat If i use imshow() instead of DrawVideoIamge(). I've got the gray image like on the previos screen i posted. |
2016-02-07 07:03:52 -0600 | commented question | convert char** to cv::Mat Also i tried to use another way of convertion, and it behaves different. Here i convert the Frame->data to cv:Mat: make some face recognition processing with cameraFrame and finally trying to draw the image this way: And now i got the color image, but it seems like it mirrored or i dont know how to explaine. Here is a link i upload the screen shot. |