I am trying to detect the square shaped symbols in a P&ID (a diagram) image file using OpenCV. I tried following tutorials that use contours, but ...
I am trying to detect the square shaped symbols in a P&ID (a diagram) image file using OpenCV. I tried following tutorials that use contours, but ...
I’m trying to make Hough Transform find a circle faster or find another function that can do it faster. (i do not need to stick to open cv, but it ne ...
This is the picture I have, and I want to detect the red ball: However, I simply cannot get the code to work. I've tried experimenting with differe ...
I am testing the following; [https://docs.opencv.org/3.4/d4/d70/tutorial_hough_circle.html][1] and it seems to be running fine. My question is how t ...
Good day I have implemented Gnuplot 5.4 in my Visual Studio 2019 Community edition. Through a sample program, I can successfully print the content of ...
I have the following code: (this is the variable red_circles) Currently when i try use (if red_circles is None) this does not work.. i'm guessin ...
I am currently programming a laser 3D-sensor which provides me with edge points (X,Y,Z) in a 2D array as a result. The coordinates are used to perform ...
I am trying to solve this problems for hours already, and similar issues on StackOverflow did not help me. Imagine I have this image (in reality it i ...
This question is an extension to my previous question asking about how to detect a pool table's corners. I have found the outline of a pool table, and ...
I'm looking at the documentation of OpenCV's cv2.HoughLines(), and the documentation references a multi-scale Hough transform. What is the difference ...
This is an extension to another user’s question asking whether it is necessary to perform a Gaussian blur before using cv2.Canny(). I know from the do ...
I am trying to measure areas and perimeters of objects in snapshots and the most conservative way to do it seemed to be to use a reference object. One ...
I am creating program that helps processing microstructure images. One of the function is detecting circles with the same radius. User draws one circl ...
I am a complete beginner when it comes to OpenCV, I have no clue where to start when trying to detect circles of a certain size, below is my current c ...
I want to draw a rectangle over a circle which I obtained using the Hough circle function over a picture of a human eye. To draw a rectangle I need ed ...
I am trying to detect each small circle (it is the bead part of the radial tires from the cross-sectional image)located as shown in the image and get ...
Whenever I try to run the above code I keep getting this error: ...
I am trying to detect all the lines in the following image: Using the following code I am able to detect almost all lines: This gives the follow ...
I've been dabbling into OpenCV for the sake of learning something new and one of the projects I proposed myself to do (as suggested by a friend) was d ...
I have been working on using python and computer vision to detect the board state of a gameboard in a game called Go. Based on the data collected here ...