how can i find the distance from the peak of one wave to another wave in a image?

2 次查看（过去 30 天）

basha Shaik 2020-2-19

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/506318-how-can-i-find-the-distance-from-the-peak-of-one-wave-to-another-wave-in-a-image

评论： darova 2020-2-26

00011.jpg

i need to find the distance of the wave. i refer to some questions & answers from that i get to know can solve canny's edge detection method.

but i don't know how to process it. can anyone help me...?

4 个评论
显示 2更早的评论隐藏 2更早的评论

darova 2020-2-19

Can you attach 3 more?

basha Shaik 2020-2-19

yaa i attached more images

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

darova 2020-2-19

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/506318-how-can-i-find-the-distance-from-the-peak-of-one-wave-to-another-wave-in-a-image#answer_416364

I suggest next algorithm

imcrop region of interest (since it's always at the same position
imbinarize image
maybe clear a bit with bwareaopen
find pixels you are interested in
use findpeaks

17 个评论
显示 15更早的评论隐藏 15更早的评论

darova 2020-2-24

In case of other error try this:

function main
for i = 0:1
    try
        STR = sprintf('%05d.jpg',i);
        write_length(STR);
        pause(1)
    catch ME
        if ~exist(STR,'file')
            disp(['File ' STR ' Does not exist'])
        else
            disp(ME.identifier)
            disp(['File ' STR ' was not processed'])
        end
    end
end
end