On Saturday, September 17, 2016 at 9:35:35 AM UTC+8, Steve D'Aprano wrote:
> On Sat, 17 Sep 2016 10:20 am, meInvent bbird wrote:
>
> > i succeed to use code to draw green line, but green line not draw the
> > large area, expect second uploaded picture, the blue line connect
> > the bottom of red line graph
>
>
> Please don't waste our time with dead code that has been commented out or
> that doesn't do anything.
>
> Here is your code with the commented out dead code removed. You should do
> this, don't expect us to do it:
>
>
> im = img.copy()
> cntcounter = 0
> for cnt in contours:
> print("approx=" + str(approx))
> cntcounter = cntcounter + 1
> print("here1")
> hull = cv2.convexHull(cnt,returnPoints = True)
> print("here2")
> while im is None:
> # WARNING: THIS IS AN INFINITE LOOP
> time.sleep(1)
> if im is not None:
> print("here3")
> previousx = 0
> previousy = 0
> for c in hull:
> if (previousx != 0 and previousy != 0 and c[0][0] != 0
> and c[0][1] != 0 and abs(previousy - c[0][1]) > 10
> and abs(c[0][0] - previousx) > 1
> ):
> while im is None:
> # WARNING: THIS IS AN INFINITE LOOP
> time.sleep(1)
> cv2.line(im, (previousx, previousy),
> (c[0][0], c[0][1]), (0, 255, 0), 2)
> print("")
> previousx = c[0][0]
> previousy = c[0][1]
>
>
>
>
> Now it is much easier to read without the noise.
>
> Problems:
>
> (1) img is not defined;
>
> (2) approx is not defined;
>
> (3) contours is not defined;
>
> (4) cv2 is not defined;
>
> (5) you have TWO possible infinite loops in your code;
>
> (6) time is not defined, but this at least I can guess is the
> standard time module;
>
> (7) c is not defined.
>
>
> As given to us, we cannot run your code or understand it, because too many
> things are undefined.
>
> My **guess** is that cv2.line() will take an argument to set the line
> colour. You should read the documentation for cv2.line().
>
>
> Before asking any more questions, please read this:
>
> http://sscce.org/
>
>
>
>
>
>
> --
> Steve
> “Cheer up,” they said, “things could be worse.” So I cheered up, and sure
> enough, things got worse.
sorry for assuming all have experience in this kind of application
here is my code
https://gist.github.com/hoyeunglee/0165b24b10de0baf8538e8866e2dcd60
Please.
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