Question

I have a very basic question about matlab. Can someone help me.

Answer 1

Im using one code form the help in matlab. As a result I have A vector or cluster not sure of it. But when I type the variable "line" in the command window, I get what is shown in the attached image

Answer 2

my question is: how do I read data from for example point one. Im finishing my semester project dude and I just need to be able to read that data

Answer 3

point1, point2, etc are embeded into the variable line.

Answer 4

do you want me to send you the code?

Answer 5

clc
% Leer la imagen
I = imread('test2.jpg');
% Pasar a escala gris
I = rgb2gray(I);
% Binarizar la imagen
BW = edge(I,'canny');
% Calculo de la transformada de hough
[H,T,R] = hough(BW);
P = houghpeaks(H,2);
x = T(P(:,2)); y = R(P(:,1));
% Find lines and plot them
lines = houghlines(BW,T,R,P,'FillGap',5,'MinLength',7);
figure, imshow(I), hold on
max_len = 0;
for k = 1:length(lines)
xy = [lines(k).point1; lines(k).point2];
plot(xy(:,1),xy(:,2),'LineWidth',2,'Color','green');
% Plot beginnings and ends of lines
plot(xy(1,1),xy(1,2),'x','LineWidth',2,'Color','yellow');
plot(xy(2,1),xy(2,2),'x','LineWidth',2,'Color','red');

% Determine the endpoints of the longest line segment
len = norm(lines(k).point1 - lines(k).point2);
if ( len > max_len)
max_len = len;
xy_long = xy;
end
end

Answer 6

you should place that image in the folder you run the code

Answer 7

you put in you code "lines(k).point1"
and that how you can get point1 value
is not it ?

Answer 8

I think I already found the answer

Answer 9

did you run the code?

Answer 10

now I dont have matlab in my PC

Answer 11

I type this "lines(:,1)" and I got into the firs subarray. Im lucky

Answer 12

by "lines(:,1) you get all elements in the subarray number 1

Answer 13

then what should I do. Coz data is still embeded into three subarrayis

Answer 14

point1: [180 436]
point2: [362 436]
theta: -90
rho: -434.7394

Answer 15

just need point one and 2

Answer 16

lines(1,1) to get the value 180
and so on

Answer 17

No Im stuck. Its not working

Answer 18

when you write lines(:,1) , what did you get ?

Answer 19

point1: [180 436]
point2: [362 436]
theta: -90
rho: -434.7394

Answer 20

I stored that into variable A

Answer 21

you got all the results just when you type :lines(:,1) ?

Answer 22

then I tried A(:,1) in order to get point1. I though that could work

Answer 23

yeah. I think lines is comprised of sub-arrays (point1, point2, theta, rho)

Answer 24

try lines(1).point1
or lines.point1

Answer 25

YEAH!

Answer 26

it did work haha

Answer 27

thank you so much

Answer 28

:)

Answer 29

good for you
you are welcome any time :)

Answer 30

shadyak can u help me

Answer 31

ok write a new question

Answer 32

i wrote already

which is the best and fastest downloading manager except internet download manager