Top "Contour" questions

OpenCV how to smooth contour, reducing noise

I extracted the contours of an image, that you can see here: However, it has some noise. How can I …

python opencv contour noise smooth

Turn hist2d output into contours in matplotlib

I have generated some data in Python using matplotlib.hist2d. An example of the data is seen below. As …

python matplotlib histogram distribution contour

Hide contour linestroke on pyplot.contourf to get only fills

I have a pet project to create images of maps, where I draw the roads and other stuff over a …

python matplotlib terrain contour

matplotlib contour plot: proportional colorbar levels in logarithmic scale

Would it be possible to have levels of the colorbar in log scale like in the image below? Here is …

python numpy matplotlib contour colorbar

Finding the "fitLine " of contours in OpenCV

I'm a program that find contours in a stream, for example : I want to find "set of points " that can …

c++ opencv image-processing contour

How to find average intensity of OpenCV contour in realtime

I have a image with about 50 to 100 small contours. I wish to find the average intensity[1] of each of these …

c++ opencv real-time average contour

Detecting clusters of white pixels in an image using openCV

Input Image: Expected Output: I intend to fit three (or some number of) polygons (for this case, rectangles) to signify …

opencv contour polygons regions

How to remove a contour inside contour in Python OpenCV?

OpenCV in Python provides the following code: regions, hierarchy = cv2.findContours(binary_image, cv2.RETR_LIST, cv2.CHAIN_APPROX_SIMPLE) …

python opencv contour

Create contour map

Given a set of (x, y, z) coordinates, how would I go about creating a contour map? Would be nice …

javascript css svg d3.js contour

How to draw anti aliased lines in OpenGL ES 2.0?

I am trying to draw some contours that I have stored as vertex arrays: typedef struct { float* vertices; int nrPoints; }…

opengl-es drawing opengl-es-2.0 antialiasing contour