find pose and angel of marker

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moh ab 2020-3-21

评论： darova 2020-3-23

in my project i have to set two markers to the robot and capture from 2 video real time

and my goal is find pose and angel of markers online and use them for simulink

can help me?

moh ab 2020-3-23

i import one image of project.

the black points in image are marker that i want find distance angel between them

moh ab 2020-3-23

please help me thanks

darova 2020-3-23

Here is a start to find markers

I0 = imread('rob.png');
I1 = im2bw(I0,graythresh(I0)-0.3);
imshow(I1)

Then just use find() to identificate first and last pixels

Use atan2d to calculate angle

moh ab 2020-3-23

please help me

darova 2020-3-23

use bwlabel

L = bwlabel(I);
[y1,x1] = find(L==1);
x1 = mean(x1);      % coordinates of the center
y1 = mean(y1);  

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