MATLAB Answers

representation of many curves

17 views (last 30 days)
cyrine tijani
cyrine tijani on 17 Apr 2021 at 22:39
Edited: KALYAN ACHARJYA on 18 Apr 2021 at 4:08
hi i have 25 images i want to select 6 pixels and follow each point during the 25 images then represent 6 curves in one axis i hope that u get me
any help ?
Walter Roberson
Walter Roberson on 17 Apr 2021 at 23:47
It is the same requirement, and the same discussion. We are working through it with the person there.

Sign in to comment.

Answers (1)

KALYAN ACHARJYA on 18 Apr 2021 at 4:05
Edited: KALYAN ACHARJYA on 18 Apr 2021 at 4:08
% Images Folder Directory
% Call the images one by one, there are multiple simmilar question, please check
% Load any one image and get the size
imgae_data=rgb2gray(imread(image_file)); %Considering Gray Image
%To select six pixels can be done in two ways
%One approach using randi function
% 2nd Approach using pixelinfo
% Now call the 25 images one by one
for i=1:25
%Read 1st images
% Get the 6 pixels values using x,y
image_data=image1; %when i=1
% Get the pixel form the image at x,y
pix_data{i,1}= % array with 6 pixels value
Once done, pix_data is a cell array with 25 elements and individual cell elements having 6 pixels value
See pix_data details
>> whos pix_data
Name Size Bytes Class Attributes
pix_data 25x6 1200 double
Next plot the pix_data with individual column wise, you will get 6 curves.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!