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I need to use openCV python to find the average width of the curve as attached in the image.

I used distance transform to find the maximum width :

dist = cv2.distanceTransform(img, cv2.DIST_L2, 3)
mnv, mv, _, mp = cv2.minMaxLoc(dist)
print(mv * 2, mp)  # (half)width*2, pos

For the average width, i tried:

avgwid=2*np.mean(dist)

as well as:

avgwid= 0.5*(mnv+mv)

However, both options are giving me the incorrect results. What is the correct way to find average width of the curve ? A solution in python would be highly appreciated. Thanks.

any example python implementation of using the skeleton and distance transform to find width at every points would solve

any example implementation of using the skeleton and distance transform to find width at every points would solve all my

Hi I have already written the program to find the coordinates of the skeleton. I just do not know how to proceed from t

Mean of the distance transform I need to use openCV python to find the average width of the curve as attached in the ima

Could anyone have an idea how i can isolate just the cracks from the image of a concrete surface. My input image is something like this:

I am expecting my output to be something like this:

I have tried canny edge detector but that gives me a broken contour. I tried dilation followed by erosion but that increases the width of crack segment in the binary image and that will be a problem as the width should not be changed. I need a closed contour of the crack without change in width. Can anyone point me in the right direction ?

can i please have a look at the sample code ? I am a beginner in programming. I am having a tough time trying to underst

I do not get the same crack width if i do this. My crack width is highly exaggerated after i apply the sobel operator. I

I do not get the same crack width if i do this. My crack width is highly exaggerated after i apply the sobel operator. I

Using openCV python to detect concrete cracks Could anyone have an idea how i can isolate just the cracks from the image

Finding distance between skeleton and boundary I am trying to find maximum width of a curve using openCV in python. I us

Does openCV distance transform work for horizontal distance but not for vertical distance ? I am using openCV distance t

Does openCV distance transform works for horizontal distance but not for vertical distance ? I am using openCV distance

Does openCV distance transform works for horizontal distance but not for vertical distance ? I am using openCV distance

Works. Thanks. I found that this works too when you have multiple contours: _, cnt, hierarchy = cv2.findContours(img.co

Works. Thanks. I found that this works too when you have multiple contours: _, cnt, hierarchy = cv2.findContours(img.co

I have two contours in the first image: .

I need to segment out individual contours and make two images out of it like this:

and

.

The individual output image has to be of the same dimension as the input image. How can this be achieved using openCV-python ? My code for drawing contours:

image, contours, hier = cv2.findContours(im, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
for c in contours:
rect = cv2.minAreaRect(c)
box = cv2.boxPoints(rect)
# convert all coordinates floating point values to int
box = np.int0(box)
# draw a red 'nghien' rectangle
cv2.drawContours(im, [box], 0, (0, 0, 255))
cv2.drawContours(im, contours, -1, (255, 255, 0), 1)

Segmenting two contours into two different images of same size using openCV-python I have two contours in the first imag

Segmenting two contours into two different images of same size using openCV-python I have two contours in the first imag

Segmenting two contours into two different images of same size using openCV-python I have two contours in the first imag

Segmenting two contours into two different images of same size using openCV-python I have two contours in the first imag

@berak Thank You. Exactly what i was looking for :)

I am trying to find width of a curve/line segment using openCV in python. The image on the left is the input image. I just need the maximum width. I read that Distance transform can help give the width. I used distance transform and was able to get the image on the right as a result. Now, I am stuck on how do i get the width of the curve from this result image of distance transform.

My code for distance transform:

dist=cv2.distanceTransform(image,cv2.DIST_L2,3)
cv2.normalize(dist,dist,0,1.0,cv2.NORM_MINMAX)

A solution in python would be highly appreciated. Thanks in advance.

Using openCV distance transform to find width of a curve I am trying to find width of a curve/line segment using openCV

@agroms Any update on doing this on python ?

distance between canny edges I was following this thread. I need the equivalent code in python desperately. Could you he