computer-vision
creating 3x3 sobel operator in opencv2 C++
Im trying to create my own sobel edge detect开发者_JS百科ion based off of the gx and gy matrices on three channels i have in my code below.[详细]
2023-04-13 03:59 分类：问答Calculating homography matrix using arbitrary known geometrical relations
I am using OpenCV for an optical measurement system. I need to carry out a perspective transformation between two images, captured by a digital camera. In the field of view of the camera I placed a se[详细]
2023-04-12 10:59 分类：问答Fast C/C++/MATLAB SURF Feature Library
What is the fastest C/C++ implementation of SURF out there? Is OpenCV superio开发者_JAVA技巧r or are there any standalone implementations that are faster? Matlab Mex wrappers is a plus.I expect that o[详细]
2023-04-12 02:19 分类：问答null undeclared identifier Error
I dont know what happened as this was running grand a few days ago but now im getting an error about an undelcared null identifier in the detectcircle() method. if(p==null){return;} I dont know whats[详细]
2023-04-11 19:14 分类：问答OpenTLD, how is it different from other object detection methods?
For those that have heard of OpenTLD, how does it alternate between tracking different objects? It can only track one object at a time, but if I had two or more objects trained in the same video feed,[详细]
2023-04-10 23:29 分类：问答How can I match a template with the original image by SURF?
Recently, I have worked with robotics project; my robot can detect the object by its 开发者_如何学Ccolour but I found that not good enough for different object. Therefore, I want the robot SURF the im[详细]
2023-04-10 13:50 分类：问答Converting an OpenCV Image to Black and White
How do you convert a grayscale OpenCV image to black and white? I see a similar question has already been asked, but I\'m using OpenCV 2.3, and the proposed solution no longer seems to work.[详细]
2023-04-10 05:25 分类：问答OpenCV tracking people from overhead view
I have a broad but interesting OpenCV question and I\'m wondering where to start. I am looking for any strategies or white papers that might help.[详细]
2023-04-10 04:24 分类：问答Random circles being detected
I\'m trying to detect circles but I am detecting circles that aren\'t even there. My code is below. Anyone know how to modify the DetectCircle() method to make the detection more accurate , please and[详细]
2023-04-10 04:19 分类：问答How does HOG feature descriptor training work?
There doesn\'t seem to be any implementations of HOG training in openCV a开发者_开发问答nd little sources about how HOG training works. From what I gathered, HOG training can be done in real time. But[详细]
2023-04-10 03:06 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......