FIltering of an image

1 次查看（过去 30 天）

显示更早的评论

Jórdan Venâncio Leite 2022-1-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image

⋮

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image

评论： Jórdan Venâncio Leite 2022-1-11

Hello, Please can you suggest any filters in which I can highlight the sides (in red) of this bubble?

Thanks in advance.

7 个评论
显示 5更早的评论隐藏 5更早的评论

Image Analyst 2022-1-7

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1924580

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1924580

No. Why is that tiny speck of white inside the red oval any different than the hundreds of others. This image would be almost impossible to accurately gauge bubble size. I suggest you pick a different metric to characterize your fluid, like mean gray level or something. Maybe mean gray level is correlated with the number of bubbles in the fluid which is then correlatable to something else, like the compressibility of the foam or something like that.

Jórdan Venâncio Leite 2022-1-7

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1924635

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1924635

Thanks for your answer imageAnalyst. I really thought it wouldn't be possible to calculate it too

yanqi liu 2022-1-8

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1924860

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1924860

yes，sir，In human eye，what is the rule to judge this target？

may be it is a moving object？

Jórdan Venâncio Leite 2022-1-8

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1925040

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1925040

The objective is to measure the size of the bubble. Thanks for your answer!

Jórdan Venâncio Leite 2022-1-11

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1929935

⋮

链接

此评论的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1624695-filtering-of-an-image#comment_1929935

编辑：Jórdan Venâncio Leite 2022-1-11

Image Analyst, do you think I could calculate the bubble size using the mean gray level as you said above? I need to highlight through the filters at least half of this image (the half of the bubble outline - the left side which I find easiest to filter) (it's in the picture below) as it is in the red circle.