How to labeling the tip of the head and the end of the tail of this fish image? Like how i did with the center of the fish using centroid.

2 次查看（过去 30 天）

显示更早的评论

Tommy 2014-7-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/142040-how-to-labeling-the-tip-of-the-head-and-the-end-of-the-tail-of-this-fish-image-like-how-i-did-with

评论： Tommy 2014-8-13

采纳的回答： Image Analyst

1.PNG

i attach the image for reference if you do not understand. have problem putting a label on the head and tail.

采纳的回答

Image Analyst 2014-7-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/142040-how-to-labeling-the-tip-of-the-head-and-the-end-of-the-tail-of-this-fish-image-like-how-i-did-with#answer_145322

You didn't attach an image. You can use text() or plot() to label the ends.

47 个评论
显示 45更早的评论隐藏 45更早的评论

Tommy 2014-7-29

编辑：Image Analyst 2014-7-29

在 MATLAB Online 中打开

as in automatic like every time change picture will detect the coordinates of head and tail. Now i using the pointers and to put at the end of the tip of the head and tail. Then using the position of the pointers for the coordinates for my equation.

%5th and 1st Head Difference
HeadDiff5 = (Zebrafishhead4 - Zebrafishhead).^2;
%5th and 1st Body Difference
BodyDiff5 = (Zebrafish_centroid4 - Zebrafish_centroid).^2;
%5th and 1st Tail Difference
TailDiff5 = (Zebrafishtail4 - Zebrafishtail).^2;
%RMSD result of 5th and 1st
E = ((HeadDiff5 + BodyDiff5 + TailDiff5)./3);
Result5 = sqrt(E);

For example like that. Where Zebrafishhead and Zebrafishtail are the pointers.

Zebrafishtail = Zebrafish_centroid+[-Zebrafish_Majoraxislength/1.83,-172];
Zebrafishhead = Zebrafish_centroid+[+Zebrafish_Minoraxislength*1.93,90];

So i am like trying to like get the position of the head and tail without writing those number(slowly putting the position of the marker). Like Major and Minor only can get the X value for the fish but not the Y value. I dont know how to use orientation for this. So if i can get the Y value of the Major and Minor it would be much easier for me.

Image Analyst 2014-8-7

You aren't still splitting your fish down the middle are you? And what's with that line along the left column that I had to delete? Other than that I don't know what you're talking about so post a screenshot.

Tommy 2014-8-13