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error:Undefined function or variable 'values'.

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barath V
barath V on 3 Mar 2020
Commented: Walter Roberson on 21 Mar 2020
clc;
clear all;
CAMERA = videoinput('pointgrey', '1');%camera initialization
start(CAMERA);
a = serial('COM3','BaudRate',9600); %arduino initialization
fopen(a);
pause(1);
for a = 1:8
automate(CAMERA)
pause(8)
end
plot(values); %plotting values just for our visual understanding
[m,index] = max(values)
fprintf(a,'%d',index) %"here is where we send the position of image to arduino"
fclose(a)
hold on
plot(index,m,'*')
hold off
title("bodekke with spot images")
stop(CAMERA); %stop camera acquisition
function[addition] = bodekke(imagename) %bodekke function mathematics behind the autofocus detection
im = double(imread(imagename))
bd = [-1 0 1]
cbd = conv2(im,bd)
squaredcbd = cbd.^2
addition = sum(squaredcbd(:))
end
function automate(CAMERA)
for i = 1:30 %to capture images
filename = sprintf('testtry%02d.jpg',i);
img = im2double(getsnapshot(CAMERA)); %captures images
img = rgb2gray(img);
imwrite(img,filename)
end
D = 'C:\Users\PRL\Desktop\just'; %location where image is stored
S = dir(fullfile(D,'*.jpg'));
for k = 1:numel(S) %applies bodekke to all images
F = fullfile(D,S(k).name);
queen(k) = bodekke(F); %bodekke function call
end
end
  26 Comments
barath V
barath V on 20 Mar 2020
i want to thank mr.walter roberson and matlab people for continuously supporting my projects,thanks mr.walter

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Answers (1)

barath V
barath V on 9 Mar 2020
hi deleting the arduino object solved the pblm,thanlks.
how can i capture a video?
  3 Comments
Walter Roberson
Walter Roberson on 21 Mar 2020
Use different folders instead of always using
D = 'C:\Users\PRL\Desktop\just';
You could use uigetdir to have the user tell you the directory. Or you could look in the folder and see what subfolders already exist and use the next available one.

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