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Find world co-ordinates of the 4 red points in the image

조회 수: 2 (최근 30일)
MJ Thangaraj
MJ Thangaraj 2016년 4월 1일
댓글: Image Analyst 2016년 4월 23일
Need to find the co-ordinates of red points,For geometric Features
Tried using edge detection and [x,y] plot Thought someone could help

답변 (2개)

KSSV
KSSV 2016년 4월 1일
clc; clear all ;
data = imread('Road-Closeup-2104957.jpg') ;
% image([0 1], [0 1],data); % Fix the axis
imshow(data) ;
title('select the red dots') ;
coor = ginput(4) ;
hold on
plot(coor(:,1),coor(:,2),'*w') ;
wont this work? You may fix the axis if you want.

Image Analyst
Image Analyst 2016년 4월 1일
My attached spatial calibration demo may help.
But you're probably going to need the camera calibration capabilities of the Computer Vision System Toolbox: http://www.mathworks.com/products/computer-vision/features.html#camera-calibration
  댓글 수: 2
MJ Thangaraj
MJ Thangaraj 2016년 4월 23일
How do i use it?
Image Analyst
Image Analyst 2016년 4월 23일
Use what? To run my code, you put it into an editor window and click the green Run triangle on the tool ribbon.

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