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2020-11-15 01:30:03 -0600 | marked best answer | How to use InRange at Different Color Space and Range. Hi all, how to use InRange at different color space and Range. for example:in RGB space, 0<=R,G,B<=255, so,it's very easy to use: But if i want the range out of the lowerb & upperb, for example: I want R color Range: 0<=R<=20, 100<=R<=255. like Aforge Color Filtering as picture. Also, in the other color space how to use InRange where the parameters out of the range. Thanks:) |
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2019-09-19 03:21:36 -0600 | commented question | discrete_fourier_transform sample error in opencv4.1.1 But I still find another question. The cols of the variable planes[0] is 75. Why? |
2019-09-19 02:14:09 -0600 | answered a question | discrete_fourier_transform sample error in opencv4.1.1 Sorry, I find out another problem: In this image, the cols of padded[0] is 75. why? it should be 25 .Isn't? |
2019-09-19 00:23:56 -0600 | commented question | discrete_fourier_transform sample error in opencv4.1.1 Hi, LBerger, I think i find out the problem. This code : Mat planes[] = { Mat_<float>(padded), Mat::zeros(padded. |
2019-09-18 04:19:34 -0600 | asked a question | discrete_fourier_transform sample error in opencv4.1.1 discrete_fourier_transform sample error in opencv4.1.1 Hi all: I find a error in sample code, I am not sure it's an err |
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2019-06-10 19:51:03 -0600 | edited answer | cv::mat in mfc try list: int ShowMat( cv::Mat img, HWND hWndDisplay ) { if (img.channels()<3 ) { re |
2019-06-10 19:35:03 -0600 | edited answer | cv::mat in mfc int ShowMat( cv::Mat img, HWND hWndDisplay ) { if (img.channels()<3 ) { return -1; } RECT rect; |
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2019-05-22 19:34:45 -0600 | commented question | robust external contour detection? yes, try to use threshold and get blob.Finally you use boundingRect to find bounding. |
2019-05-21 19:19:18 -0600 | commented question | robust external contour detection? try adaptivethreshold replace Canny. |
2019-01-23 08:36:59 -0600 | edited question | Is bug or not in opencv3.4.4(findcontours)? Is bug or not in opencv3.4.4(findcontours)? Hi all. Long time no see, I try to rewrite sample code as below public: Sy |
2019-01-23 08:27:28 -0600 | asked a question | Is bug or not in opencv3.4.4(findcontours)? Is bug or not in opencv3.4.4(findcontours)? Hi all. Long time no see, I try to rewrite sample code as below public: Sy |
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2018-10-02 08:27:39 -0600 | commented question | cv::String in example opencv_version Opencv 3.0 No,just do your best |
2018-09-27 07:53:14 -0600 | commented answer | Having trouble with using Mat image in pictureBox of Visual C++ CLR project Sorry I delete some comment! |
2018-09-27 07:52:51 -0600 | edited answer | Having trouble with using Mat image in pictureBox of Visual C++ CLR project Hi, here is the example code, but web is japan language http://imagingsolution.blog107.fc2.com/blog-entry-91.html if you |
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2017-07-10 16:41:39 -0600 | marked best answer | How to access pixels along a line or curve using opencv? Hi all, is any method to access pixels along a line or curve in opencv??? |
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2016-12-12 07:48:11 -0600 | commented question | CV_IPP_RUN no define when build opencv3.1.0 I found you should download from github. There is a bug in OpenCV V3.1.0. if you download from sourceforge! |
2016-05-21 15:50:39 -0600 | marked best answer | How to create irregular ROI?? Hi all: How to use opencv to create irregular ROI? Like rotate rectangle, cycle , H,or T sharp ROI???? |
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2016-03-13 00:22:17 -0600 | asked a question | CV_IPP_RUN no define when build opencv3.1.0 Hi all, I use cmake to config my system before build opencv3.1.0 source core. But when i open source code in vs2015. I find that "identifier CV_IPP_RUN not define". How to setup or config the environment? (more) |
2016-03-03 10:14:56 -0600 | commented question | BaseRowFilter and BaseColumnFilter in opencv 3.x I am sorry that it is the same question:) |
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2016-01-11 03:08:10 -0600 | marked best answer | The contours in drawcontours is closed or not? Hi all, this is my test picture: As i know, if want to calculate the area or others , the contours should be closed. But I test findcontours and drawcontours , i cann't verify. The following code is true or not. Thanks. Finally I get: ---->result.bmp --->Contours(temp.bmp) is not closed. |
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2015-12-26 13:49:05 -0600 | marked best answer | How to faster sort matrix? I want to sort all element of mat but my kernel size(kernel_size=61) is very large. Now i use Is any faster method?? pls tell me, thanks:) |
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