Establishment of vectors in 2D coordinate system based on 2D image
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Dear all, I wish I could construct the coordinate system based on 2D image in Matlab.
I have a image as attached:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/510922/image.jpeg)
I wish I could find the vector of long axis for each object, like attached:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/510927/image.jpeg)
My thought is to use the different pixel information to specify the objects, but I'm not sure how to implement it.
I established coordinate system via following command
clear
clc
close all
A=imread('2D_try.jpg')
A=gpuArray(A)
B=imshow(A)
C=impixelinfo(B)
Could you give me a comment or suggestion?
Wish all of you have a nice weekend!
Sincerely
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